ci: fix smoke tests

Signed-off-by: Xe Iaso <me@xeiaso.net>
docs: update CHANGELOG with binaryen dependency
2026-04-06 08:48:19 +00:00 · 2025-09-30 21:17:36 +00:00 · 2025-09-30 21:04:43 +00:00 · 2025-09-30 21:02:59 +00:00 · 2025-09-30 20:57:59 +00:00 · 2025-09-30 20:57:49 +00:00
80 changed files with 2929 additions and 787 deletions
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -4,7 +4,7 @@ WORKDIR /app

 COPY go.mod go.sum package.json package-lock.json ./
 RUN apt-get update \
-  && apt-get -y install zstd brotli redis \
+  && apt-get -y install zstd brotli redis uuid-runtime binaryen \
  && mkdir -p /home/vscode/.local/share/fish \
  && chown -R vscode:vscode /home/vscode/.local/share/fish \
  && chown -R vscode:vscode /go
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -10,7 +10,11 @@
  "postStartCommand": "bash ./.devcontainer/poststart.sh",
  "features": {
    "ghcr.io/xe/devcontainer-features/ko:1.1.0": {},
-    "ghcr.io/devcontainers/features/github-cli:1": {}
+    "ghcr.io/devcontainers/features/github-cli:1": {},
+    "ghcr.io/devcontainers/features/rust:1": {
+      "version": "latest",
+      "targets": "wasm32-unknown-unknown"
+    }
  },
  "initializeCommand": "mkdir -p ${localEnv:HOME}${localEnv:USERPROFILE}/.local/share/atuin",
  "customizations": {
--- a/.devcontainer/poststart.sh
+++ b/.devcontainer/poststart.sh
@@ -5,5 +5,6 @@ pwd
 npm ci &
 go mod download &
 go install ./utils/cmd/... &
+cargo fetch &

 wait
--- a/.github/actions/spelling/expect.txt
+++ b/.github/actions/spelling/expect.txt
@@ -22,6 +22,7 @@ bbolt
 bdba
 berr
 bezier
+binaryen
 bingbot
 Bitcoin
 bitrate
@@ -41,6 +42,7 @@ cachediptoasn
 Caddyfile
 caninetools
 Cardyb
+cdylib
 celchecker
 celphase
 cerr
@@ -57,7 +59,9 @@ checkresult
 chibi
 cidranger
 ckie
+clippy
 cloudflare
+codegen
 Codespaces
 confd
 connnection
@@ -69,11 +73,15 @@ crt
 Cscript
 daemonizing
 dayjob
+dce
 DDOS
+dealign
 Debian
 debrpm
 decaymap
+denan
 devcontainers
+dfo
 Diffbot
 discordapp
 discordbot
@@ -92,6 +100,7 @@ eerror
 ellenjoe
 emacs
 enbyware
+equix
 etld
 everyones
 evilbot
@@ -104,14 +113,18 @@ facebookgo
 Factset
 fastcgi
 fediverse
+fff
+ffm
 ffprobe
 financials
 finfos
 Firecrawl
 flagenv
+fnames
 Fordola
 forgejo
 forwardauth
+fpcast
 fsys
 fullchain
 gaissmai
@@ -137,9 +150,9 @@ gptbot
 Graphene
 grpcprom
 grw
-gzw
 Hashcash
 hashrate
+hashx
 headermap
 healthcheck
 healthz
@@ -148,6 +161,7 @@ Hetzner
 hmc
 homelab
 hostable
+hostimport
 htmlc
 htmx
 httpdebug
@@ -158,6 +172,7 @@ iaskspider
 iaso
 iat
 ifm
+iit
 Imagesift
 imgproxy
 impressum
@@ -169,6 +184,7 @@ iptoasn
 isp
 iss
 isset
+iterand
 ivh
 Jenomis
 JGit
@@ -182,6 +198,7 @@ kagibot
 Keyfunc
 keypair
 KHTML
+kilohashes
 kinda
 KUBECONFIG
 lcj
@@ -196,9 +213,11 @@ limsa
 Linting
 linuxbrew
 LLU
+lmu
 loadbalancer
 lol
 lominsa
+lto
 maintainership
 malware
 mcr
@@ -265,12 +284,16 @@ redir
 redirectscheme
 refactors
 reputational
+rereloop
 risc
+rse
 ruleset
 runlevels
 RUnlock
 runtimedir
 runtimedirectory
+RUSTFLAGS
+rustup
 Ryzen
 sas
 sasl
@@ -286,6 +309,7 @@ shellcheck
 shirou
 shopt
 Sidetrade
+simd
 simprint
 sitemap
 sls
@@ -313,20 +337,25 @@ techarohq
 templ
 templruntime
 testarea
+tetratelabs
 Thancred
 thoth
 thothmock
 Tik
 Timpibot
 TLog
+tnh
 traefik
 trunc
 uberspace
 Unbreak
 unbreakdocker
 unifiedjs
+uninlined
 unmarshal
 unparseable
+untee
+usize
 uvx
 uwu
 UXP
@@ -337,6 +366,8 @@ vendored
 vhosts
 VKE
 Vultr
+wasmjs
+wazero
 weblate
 webmaster
 webpage
@@ -368,6 +399,7 @@ Yda
 yeet
 yeetfile
 yourdomain
+yoursite
 yyz
 Zenos
 zizmor
--- a/.github/workflows/docker-pr.yml
+++ b/.github/workflows/docker-pr.yml
@@ -2,7 +2,7 @@ name: Docker image builds (pull requests)

 on:
  pull_request:
-    branches: [ "main" ]
+    branches: ["main"]

 env:
  DOCKER_METADATA_SET_OUTPUT_ENV: "true"
@@ -45,6 +45,17 @@ jobs:
        run: |
          brew bundle

+      - uses: actions-rust-lang/setup-rust-toolchain@02be93da58aa71fb456aa9c43b301149248829d8 # v1.15.1
+        with:
+          cache: false
+          target: wasm32-unknown-unknown
+
+      - name: Setup Binaryen
+        uses: Aandreba/setup-binaryen@77f25f9d7d30f09667a2535888bf9516b31a4cd7 # v1.0.0
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          version: 108
+
      - name: Docker meta
        id: meta
        uses: docker/metadata-action@c1e51972afc2121e065aed6d45c65596fe445f3f # v5.8.0
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -55,6 +55,17 @@ jobs:
        run: |
          brew bundle

+      - uses: actions-rust-lang/setup-rust-toolchain@02be93da58aa71fb456aa9c43b301149248829d8 # v1.15.1
+        with:
+          cache: false
+          target: wasm32-unknown-unknown
+
+      - name: Setup Binaryen
+        uses: Aandreba/setup-binaryen@77f25f9d7d30f09667a2535888bf9516b31a4cd7 # v1.0.0
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          version: 108
+
      - name: Log into registry
        uses: docker/login-action@184bdaa0721073962dff0199f1fb9940f07167d1 # v3.5.0
        with:
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -2,9 +2,9 @@ name: Go

 on:
  push:
-    branches: [ "main" ]
+    branches: ["main"]
  pull_request:
-    branches: [ "main" ]
+    branches: ["main"]

 permissions:
  contents: read
@@ -15,77 +15,88 @@ jobs:
    #runs-on: alrest-techarohq
    runs-on: ubuntu-24.04
    steps:
-    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-      with:
-        persist-credentials: false
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          persist-credentials: false

-    - name: build essential
-      run: |
-        sudo apt-get update
-        sudo apt-get install -y build-essential
+      - name: build essential
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y build-essential

-    - name: Set up Homebrew
-      uses: Homebrew/actions/setup-homebrew@main
+      - name: Set up Homebrew
+        uses: Homebrew/actions/setup-homebrew@main

-    - name: Setup Homebrew cellar cache
-      uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
-      with:
-        path: |
-          /home/linuxbrew/.linuxbrew/Cellar
-          /home/linuxbrew/.linuxbrew/bin
-          /home/linuxbrew/.linuxbrew/etc
-          /home/linuxbrew/.linuxbrew/include
-          /home/linuxbrew/.linuxbrew/lib
-          /home/linuxbrew/.linuxbrew/opt
-          /home/linuxbrew/.linuxbrew/sbin
-          /home/linuxbrew/.linuxbrew/share
-          /home/linuxbrew/.linuxbrew/var
-        key: ${{ runner.os }}-go-homebrew-cellar-${{ hashFiles('go.sum') }}
-        restore-keys: |
-          ${{ runner.os }}-go-homebrew-cellar-
+      - name: Setup Homebrew cellar cache
+        uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
+        with:
+          path: |
+            /home/linuxbrew/.linuxbrew/Cellar
+            /home/linuxbrew/.linuxbrew/bin
+            /home/linuxbrew/.linuxbrew/etc
+            /home/linuxbrew/.linuxbrew/include
+            /home/linuxbrew/.linuxbrew/lib
+            /home/linuxbrew/.linuxbrew/opt
+            /home/linuxbrew/.linuxbrew/sbin
+            /home/linuxbrew/.linuxbrew/share
+            /home/linuxbrew/.linuxbrew/var
+          key: ${{ runner.os }}-go-homebrew-cellar-${{ hashFiles('go.sum') }}
+          restore-keys: |
+            ${{ runner.os }}-go-homebrew-cellar-

-    - name: Install Brew dependencies
-      run: |
-        brew bundle
+      - name: Install Brew dependencies
+        run: |
+          brew bundle

-    - name: Setup Golang caches
-      uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
-      with:
-        path: |
-          ~/.cache/go-build
-          ~/go/pkg/mod
-        key: ${{ runner.os }}-golang-${{ hashFiles('**/go.sum') }}
-        restore-keys: |
-          ${{ runner.os }}-golang-
+      - name: Setup Golang caches
+        uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
+        with:
+          path: |
+            ~/.cache/go-build
+            ~/go/pkg/mod
+          key: ${{ runner.os }}-golang-${{ hashFiles('**/go.sum') }}
+          restore-keys: |
+            ${{ runner.os }}-golang-

-    - name: Cache playwright binaries
-      uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
-      id: playwright-cache
-      with:
-        path: |
-          ~/.cache/ms-playwright
-        key: ${{ runner.os }}-playwright-${{ hashFiles('**/go.sum') }}
+      - uses: actions-rust-lang/setup-rust-toolchain@02be93da58aa71fb456aa9c43b301149248829d8 # v1.15.1
+        with:
+          cache: false
+          target: wasm32-unknown-unknown

-    - name: install node deps
-      run: |
-        npm ci
+      - name: Setup Binaryen
+        uses: Aandreba/setup-binaryen@77f25f9d7d30f09667a2535888bf9516b31a4cd7 # v1.0.0
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          version: 108

-    - name: install playwright browsers
-      run: |
-        npx --no-install playwright@1.52.0 install --with-deps
-        npx --no-install playwright@1.52.0 run-server --port 9001 &
+      - name: Cache playwright binaries
+        uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
+        id: playwright-cache
+        with:
+          path: |
+            ~/.cache/ms-playwright
+          key: ${{ runner.os }}-playwright-${{ hashFiles('**/go.sum') }}

-    - name: Build
-      run: npm run build
+      - name: install node deps
+        run: |
+          npm ci

-    - name: Test
-      run: npm run test
+      - name: install playwright browsers
+        run: |
+          npx --no-install playwright@1.52.0 install --with-deps
+          npx --no-install playwright@1.52.0 run-server --port 9001 &

-    - name: Lint with staticcheck
-      uses: dominikh/staticcheck-action@024238d2898c874f26d723e7d0ff4308c35589a2 # v1.4.0
-      with:
-        version: "latest"
+      - name: Build
+        run: npm run build

-    - name: Govulncheck
-      run: |
-        go tool govulncheck ./...
+      - name: Test
+        run: npm run test
+
+      - name: Lint with staticcheck
+        uses: dominikh/staticcheck-action@024238d2898c874f26d723e7d0ff4308c35589a2 # v1.4.0
+        with:
+          version: "latest"
+
+      - name: Govulncheck
+        run: |
+          go tool govulncheck ./...
--- a/.github/workflows/package-builds-stable.yml
+++ b/.github/workflows/package-builds-stable.yml
@@ -59,6 +59,17 @@ jobs:
          restore-keys: |
            ${{ runner.os }}-golang-

+      - uses: actions-rust-lang/setup-rust-toolchain@02be93da58aa71fb456aa9c43b301149248829d8 # v1.15.1
+        with:
+          cache: false
+          target: wasm32-unknown-unknown
+
+      - name: Setup Binaryen
+        uses: Aandreba/setup-binaryen@77f25f9d7d30f09667a2535888bf9516b31a4cd7 # v1.0.0
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          version: 108
+
      - name: install node deps
        run: |
          npm ci
--- a/.github/workflows/package-builds-unstable.yml
+++ b/.github/workflows/package-builds-unstable.yml
@@ -2,9 +2,9 @@ name: Package builds (unstable)

 on:
  push:
-    branches: [ "main" ]
+    branches: ["main"]
  pull_request:
-    branches: [ "main" ]
+    branches: ["main"]

 permissions:
  contents: read
@@ -15,60 +15,71 @@ jobs:
    #runs-on: alrest-techarohq
    runs-on: ubuntu-24.04
    steps:
-    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-      with:
-        persist-credentials: false
-        fetch-tags: true
-        fetch-depth: 0
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          persist-credentials: false
+          fetch-tags: true
+          fetch-depth: 0

-    - name: build essential
-      run: |
-        sudo apt-get update
-        sudo apt-get install -y build-essential
+      - name: build essential
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y build-essential

-    - name: Set up Homebrew
-      uses: Homebrew/actions/setup-homebrew@main
+      - name: Set up Homebrew
+        uses: Homebrew/actions/setup-homebrew@main

-    - name: Setup Homebrew cellar cache
-      uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
-      with:
-        path: |
-          /home/linuxbrew/.linuxbrew/Cellar
-          /home/linuxbrew/.linuxbrew/bin
-          /home/linuxbrew/.linuxbrew/etc
-          /home/linuxbrew/.linuxbrew/include
-          /home/linuxbrew/.linuxbrew/lib
-          /home/linuxbrew/.linuxbrew/opt
-          /home/linuxbrew/.linuxbrew/sbin
-          /home/linuxbrew/.linuxbrew/share
-          /home/linuxbrew/.linuxbrew/var
-        key: ${{ runner.os }}-go-homebrew-cellar-${{ hashFiles('go.sum') }}
-        restore-keys: |
-          ${{ runner.os }}-go-homebrew-cellar-
+      - name: Setup Homebrew cellar cache
+        uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
+        with:
+          path: |
+            /home/linuxbrew/.linuxbrew/Cellar
+            /home/linuxbrew/.linuxbrew/bin
+            /home/linuxbrew/.linuxbrew/etc
+            /home/linuxbrew/.linuxbrew/include
+            /home/linuxbrew/.linuxbrew/lib
+            /home/linuxbrew/.linuxbrew/opt
+            /home/linuxbrew/.linuxbrew/sbin
+            /home/linuxbrew/.linuxbrew/share
+            /home/linuxbrew/.linuxbrew/var
+          key: ${{ runner.os }}-go-homebrew-cellar-${{ hashFiles('go.sum') }}
+          restore-keys: |
+            ${{ runner.os }}-go-homebrew-cellar-

-    - name: Install Brew dependencies
-      run: |
-        brew bundle
+      - name: Install Brew dependencies
+        run: |
+          brew bundle

-    - name: Setup Golang caches
-      uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
-      with:
-        path: |
-          ~/.cache/go-build
-          ~/go/pkg/mod
-        key: ${{ runner.os }}-golang-${{ hashFiles('**/go.sum') }}
-        restore-keys: |
-          ${{ runner.os }}-golang-
+      - name: Setup Golang caches
+        uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
+        with:
+          path: |
+            ~/.cache/go-build
+            ~/go/pkg/mod
+          key: ${{ runner.os }}-golang-${{ hashFiles('**/go.sum') }}
+          restore-keys: |
+            ${{ runner.os }}-golang-

-    - name: install node deps
-      run: |
-        npm ci
+      - uses: actions-rust-lang/setup-rust-toolchain@02be93da58aa71fb456aa9c43b301149248829d8 # v1.15.1
+        with:
+          cache: false
+          target: wasm32-unknown-unknown

-    - name: Build Packages
-      run: |
-        go tool yeet
+      - name: Setup Binaryen
+        uses: Aandreba/setup-binaryen@77f25f9d7d30f09667a2535888bf9516b31a4cd7 # v1.0.0
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          version: 108

-    - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
-      with:
-        name: packages
-        path: var/*
+      - name: install node deps
+        run: |
+          npm ci
+
+      - name: Build Packages
+        run: |
+          go tool yeet
+
+      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: packages
+          path: var/*
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -0,0 +1,35 @@
+name: "Rust tests"
+on:
+  push:
+  pull_request:
+
+jobs:
+  rust-test:
+    name: cargo test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          persist-credentials: false
+      - uses: actions-rust-lang/setup-rust-toolchain@02be93da58aa71fb456aa9c43b301149248829d8 # v1.15.1
+        with:
+          cache: false
+          target: wasm32-unknown-unknown
+      - run: cargo test --all-features
+
+  # Check formatting with rustfmt
+  rust-formatting:
+    name: cargo fmt
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          persist-credentials: false
+      # Ensure rustfmt is installed and setup problem matcher
+      - uses: actions-rust-lang/setup-rust-toolchain@02be93da58aa71fb456aa9c43b301149248829d8 # v1.15.1
+        with:
+          components: rustfmt
+          cache: false
+          target: wasm32-unknown-unknown
+      - name: Rustfmt Check
+        uses: actions-rust-lang/rustfmt@559aa3035a47390ba96088dffa783b5d26da9326 # v1.1.1
--- a/.github/workflows/smoke-tests.yml
+++ b/.github/workflows/smoke-tests.yml
@@ -14,7 +14,6 @@ jobs:
    strategy:
      matrix:
        test:
-          - default-config-macro
          - double_slash
          - forced-language
          - git-clone
@@ -38,6 +37,11 @@ jobs:
        with:
          go-version: stable

+      - uses: actions-rust-lang/setup-rust-toolchain@02be93da58aa71fb456aa9c43b301149248829d8 # v1.15.1
+        with:
+          cache: false
+          target: wasm32-unknown-unknown
+
      - uses: ko-build/setup-ko@d006021bd0c28d1ce33a07e7943d48b079944c8d # v0.9

      - name: Install utils
--- a/.github/workflows/ssh-ci-runner-cron.yml
+++ b/.github/workflows/ssh-ci-runner-cron.yml
@@ -1,37 +0,0 @@
-name: Regenerate ssh ci runner image
-
-on:
-  # pull_request:
-  #   branches: ["main"]
-  schedule:
-    - cron: "0 0 1,8,15,22 * *"
-  workflow_dispatch:
-
-permissions:
-  pull-requests: write
-  contents: write
-  packages: write
-
-jobs:
-  ssh-ci-rebuild:
-    if: github.repository == 'TecharoHQ/anubis'
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-        with:
-          fetch-tags: true
-          fetch-depth: 0
-          persist-credentials: false
-      - name: Log into registry
-        uses: docker/login-action@184bdaa0721073962dff0199f1fb9940f07167d1 # v3.5.0
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
-      - name: Build and push
-        run: |
-          cd ./test/ssh-ci
-          docker buildx bake --push
--- a/.github/workflows/ssh-ci.yml
+++ b/.github/workflows/ssh-ci.yml
@@ -3,8 +3,8 @@ name: SSH CI
 on:
  push:
    branches: ["main"]
-  # pull_request:
-  #   branches: ["main"]
+  pull_request:
+    branches: ["main"]

 permissions:
  contents: read
@@ -39,6 +39,17 @@ jobs:
        with:
          go-version: stable

+      - uses: actions-rust-lang/setup-rust-toolchain@02be93da58aa71fb456aa9c43b301149248829d8 # v1.15.1
+        with:
+          cache: false
+          target: wasm32-unknown-unknown
+
+      - name: Setup Binaryen
+        uses: Aandreba/setup-binaryen@77f25f9d7d30f09667a2535888bf9516b31a4cd7 # v1.0.0
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          version: 108
+
      - name: Run CI
        run: go run ./utils/cmd/backoff-retry bash test/ssh-ci/rigging.sh ${{ matrix.host }}
        env:
--- a/.gitignore
+++ b/.gitignore
@@ -21,4 +21,8 @@ node_modules
 # how does this get here
 doc/VERSION

-web/static/locales/*.json
+web/static/locales/*.json
+
+# Rust
+target/*
+*.wasm
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -0,0 +1,431 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "anubis"
+version = "0.1.0"
+dependencies = [
+ "wee_alloc",
+]
+
+[[package]]
+name = "arrayvec"
+version = "0.7.6"
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+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
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+version = "0.4.0"
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--- a/Cargo.toml
+++ b/Cargo.toml
@@ -0,0 +1,10 @@
+[workspace]
+resolver = "2"
+members = ["wasm/anubis", "wasm/pow/*"]
+
+[profile.release]
+#strip = true
+opt-level = "s"
+lto = "thin"
+codegen-units = 1
+panic = "abort"
--- a/9
+++ b/9
@@ -1,17 +1,22 @@
 VERSION= $(shell cat ./VERSION)
 GO?= go
 NPM?= npm
+CARGO?= cargo

-.PHONY: build assets deps lint prebaked-build test
+.PHONY: build assets assets-wasm deps lint prebaked-build test

 all: build

 deps:
 	$(NPM) ci
 	$(GO) mod download
+	$(CARGO) fetch
+
+assets-wasm:
+	bash ./scripts/build_wasm.sh

 assets: PATH:=$(PWD)/node_modules/.bin:$(PATH)
-assets: deps
+assets: deps assets-wasm
 	$(GO) generate ./...
 	./web/build.sh
 	./xess/build.sh
--- a/2
+++ b/2
@@ -1 +1 @@
-1.23.0-pre1
+1.22.0
--- a/data/botPolicies.yaml
+++ b/data/botPolicies.yaml
@@ -11,9 +11,6 @@
 ## /usr/share/docs/anubis/data or in the tarball you extracted Anubis from.

 bots:
-  # You can import the entire default config with this macro:
-  # - import: (data)/meta/default-config.yaml
-
  # Pathological bots to deny
  - # This correlates to data/bots/_deny-pathological.yaml in the source tree
    # https://github.com/TecharoHQ/anubis/blob/main/data/bots/_deny-pathological.yaml
@@ -96,50 +93,6 @@ bots:
  #   weight:
  #     adjust: -10

-  # Assert behaviour that only genuine browsers display. This ensures that Chrome
-  # or Firefox versions
-  - name: realistic-browser-catchall
-    expression:
-      all:
-        - '"User-Agent" in headers'
-        - '( userAgent.contains("Firefox") ) || ( userAgent.contains("Chrome") ) || ( userAgent.contains("Safari") )'
-        - '"Accept" in headers'
-        - '"Sec-Fetch-Dest" in headers'
-        - '"Sec-Fetch-Mode" in headers'
-        - '"Sec-Fetch-Site" in headers'
-        - '"Accept-Encoding" in headers'
-        - '( headers["Accept-Encoding"].contains("zstd") || headers["Accept-Encoding"].contains("br") )'
-        - '"Accept-Language" in headers'
-    action: WEIGH
-    weight:
-      adjust: -10
-
-  # The Upgrade-Insecure-Requests header is typically sent by browsers, but not always
-  - name: upgrade-insecure-requests
-    expression: '"Upgrade-Insecure-Requests" in headers'
-    action: WEIGH
-    weight:
-      adjust: -2
-
-  # Chrome should behave like Chrome
-  - name: chrome-is-proper
-    expression:
-      all:
-        - userAgent.contains("Chrome")
-        - '"Sec-Ch-Ua" in headers'
-        - 'headers["Sec-Ch-Ua"].contains("Chromium")'
-        - '"Sec-Ch-Ua-Mobile" in headers'
-        - '"Sec-Ch-Ua-Platform" in headers'
-    action: WEIGH
-    weight:
-      adjust: -5
-
-  - name: should-have-accept
-    expression: '!("Accept" in headers)'
-    action: WEIGH
-    weight:
-      adjust: 5
-
  # Generic catchall rule
  - name: generic-browser
    user_agent_regex: >-
@@ -259,10 +212,14 @@ thresholds:
        - weight < 20
    action: CHALLENGE
    challenge:
-      # https://anubis.techaro.lol/docs/admin/configuration/challenges/proof-of-work
-      algorithm: fast
-      difficulty: 2 # two leading zeros, very fast for most clients
-      report_as: 2
+      # https://anubis.techaro.lol/docs/admin/configuration/challenges/preact
+      #
+      # This challenge proves the client can run a webapp written with Preact.
+      # The preact webapp simply loads, calculates the SHA-256 checksum of the
+      # challenge data, and forwards that to the client.
+      algorithm: preact
+      difficulty: 1
+      report_as: 1
  - name: mild-proof-of-work
    expression:
      all:
@@ -272,8 +229,8 @@ thresholds:
    challenge:
      # https://anubis.techaro.lol/docs/admin/configuration/challenges/proof-of-work
      algorithm: fast
-      difficulty: 4
-      report_as: 4
+      difficulty: 2 # two leading zeros, very fast for most clients
+      report_as: 2
  # For clients that are browser like and have gained many points from custom rules
  - name: extreme-suspicion
    expression: weight >= 30
@@ -281,5 +238,5 @@ thresholds:
    challenge:
      # https://anubis.techaro.lol/docs/admin/configuration/challenges/proof-of-work
      algorithm: fast
-      difficulty: 6
-      report_as: 6
+      difficulty: 4
+      report_as: 4
--- a/data/clients/git.yaml
+++ b/data/clients/git.yaml
@@ -2,19 +2,13 @@
  action: ALLOW
  expression:
    all:
-      - >
-        (  
-          userAgent.startsWith("git/") ||
-          userAgent.contains("libgit") ||
-          userAgent.startsWith("go-git") ||
-          userAgent.startsWith("JGit/") ||
-          userAgent.startsWith("JGit-")
-        )
-      - '"Accept" in headers'
-      - headers["Accept"] == "*/*"
-      - '"Cache-Control" in headers'
-      - headers["Cache-Control"] == "no-cache"
-      - '"Pragma" in headers'
-      - headers["Pragma"] == "no-cache"
-      - '"Accept-Encoding" in headers'
-      - headers["Accept-Encoding"].contains("gzip")
+    - >
+      (  
+        userAgent.startsWith("git/") ||
+        userAgent.contains("libgit") ||
+        userAgent.startsWith("go-git") ||
+        userAgent.startsWith("JGit/") ||
+        userAgent.startsWith("JGit-")
+      )
+    - '"Git-Protocol" in headers'
+    - headers["Git-Protocol"] == "version=2"
--- a/data/meta/default-config.yaml
+++ b/data/meta/default-config.yaml
@@ -1,133 +0,0 @@
- # Pathological bots to deny
-  # This correlates to data/bots/_deny-pathological.yaml in the source tree
-  # https://github.com/TecharoHQ/anubis/blob/main/data/bots/_deny-pathological.yaml
-  import: (data)/bots/_deny-pathological.yaml
- import: (data)/bots/aggressive-brazilian-scrapers.yaml
-
-# Aggressively block AI/LLM related bots/agents by default
- import: (data)/meta/ai-block-aggressive.yaml
-
-# Consider replacing the aggressive AI policy with more selective policies:
-# - import: (data)/meta/ai-block-moderate.yaml
-# - import: (data)/meta/ai-block-permissive.yaml
-
-# Search engine crawlers to allow, defaults to:
-#   - Google (so they don't try to bypass Anubis)
-#   - Apple
-#   - Bing
-#   - DuckDuckGo
-#   - Qwant
-#   - The Internet Archive
-#   - Kagi
-#   - Marginalia
-#   - Mojeek
- import: (data)/crawlers/_allow-good.yaml
-# Challenge Firefox AI previews
- import: (data)/clients/x-firefox-ai.yaml
-
-# Allow common "keeping the internet working" routes (well-known, favicon, robots.txt)
- import: (data)/common/keep-internet-working.yaml
-
-# # Punish any bot with "bot" in the user-agent string
-# # This is known to have a high false-positive rate, use at your own risk
-# - name: generic-bot-catchall
-#   user_agent_regex: (?i:bot|crawler)
-#   action: CHALLENGE
-#   challenge:
-#     difficulty: 16  # impossible
-#     report_as: 4    # lie to the operator
-#     algorithm: slow # intentionally waste CPU cycles and time
-
-# Requires a subscription to Thoth to use, see
-# https://anubis.techaro.lol/docs/admin/thoth#geoip-based-filtering
- name: countries-with-aggressive-scrapers
-  action: WEIGH
-  geoip:
-    countries:
-      - BR
-      - CN
-  weight:
-    adjust: 10
-
-# Requires a subscription to Thoth to use, see
-# https://anubis.techaro.lol/docs/admin/thoth#asn-based-filtering
- name: aggressive-asns-without-functional-abuse-contact
-  action: WEIGH
-  asns:
-    match:
-      - 13335 # Cloudflare
-      - 136907 # Huawei Cloud
-      - 45102 # Alibaba Cloud
-  weight:
-    adjust: 10
-
-# ## System load based checks.
-# # If the system is under high load, add weight.
-# - name: high-load-average
-#   action: WEIGH
-#   expression: load_1m >= 10.0 # make sure to end the load comparison in a .0
-#   weight:
-#     adjust: 20
-
-## If your backend service is running on the same operating system as Anubis,
-## you can uncomment this rule to make the challenge easier when the system is
-## under low load.
-##
-## If it is not, remove weight.
-# - name: low-load-average
-#   action: WEIGH
-#   expression: load_15m <= 4.0 # make sure to end the load comparison in a .0
-#   weight:
-#     adjust: -10
-
-# Assert behaviour that only genuine browsers display. This ensures that Chrome
-# or Firefox versions
- name: realistic-browser-catchall
-  expression:
-    all:
-      - '"User-Agent" in headers'
-      - '( userAgent.contains("Firefox") ) || ( userAgent.contains("Chrome") ) || ( userAgent.contains("Safari") )'
-      - '"Accept" in headers'
-      - '"Sec-Fetch-Dest" in headers'
-      - '"Sec-Fetch-Mode" in headers'
-      - '"Sec-Fetch-Site" in headers'
-      - '"Accept-Encoding" in headers'
-      - '( headers["Accept-Encoding"].contains("zstd") || headers["Accept-Encoding"].contains("br") )'
-      - '"Accept-Language" in headers'
-  action: WEIGH
-  weight:
-    adjust: -10
-
-# The Upgrade-Insecure-Requests header is typically sent by browsers, but not always
- name: upgrade-insecure-requests
-  expression: '"Upgrade-Insecure-Requests" in headers'
-  action: WEIGH
-  weight:
-    adjust: -2
-
-# Chrome should behave like Chrome
- name: chrome-is-proper
-  expression:
-    all:
-      - userAgent.contains("Chrome")
-      - '"Sec-Ch-Ua" in headers'
-      - 'headers["Sec-Ch-Ua"].contains("Chromium")'
-      - '"Sec-Ch-Ua-Mobile" in headers'
-      - '"Sec-Ch-Ua-Platform" in headers'
-  action: WEIGH
-  weight:
-    adjust: -5
-
- name: should-have-accept
-  expression: '!("Accept" in headers)'
-  action: WEIGH
-  weight:
-    adjust: 5
-
-# Generic catchall rule
- name: generic-browser
-  user_agent_regex: >-
-    Mozilla|Opera
-  action: WEIGH
-  weight:
-    adjust: 10
--- a/docs/docs/CHANGELOG.md
+++ b/docs/docs/CHANGELOG.md
@@ -13,9 +13,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0

 <!-- This changes the project to: -->

-## v1.23.0: Lyse Hext
-
- Added `(data)/meta/default-config.yaml` for importing the entire default configuration at once.
 - Add `-custom-real-ip-header` flag to get the original request IP from a different header than `x-real-ip`.
 - Add `contentLength` variable to bot expressions.
 - Add `COOKIE_SAME_SITE_MODE` to force anubis cookies SameSite value, and downgrade automatically from `None` to `Lax` if cookie is insecure.
@@ -24,7 +21,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Document missing environment variables in installation guide: `SLOG_LEVEL`, `COOKIE_PREFIX`, `FORCED_LANGUAGE`, and `TARGET_DISABLE_KEEPALIVE` ([#1086](https://github.com/TecharoHQ/anubis/pull/1086)).
 - Add validation warning when persistent storage is used without setting signing keys.
 - Fixed `robots2policy` to properly group consecutive user agents into `any:` instead of only processing the last one ([#925](https://github.com/TecharoHQ/anubis/pull/925)).
- Make the `fast` algorithm prefer purejs when running in an insecure context.
 - Add the [`s3api` storage backend](./admin/policies.mdx#s3api) to allow Anubis to use S3 API compatible object storage as its storage backend.
 - Fix a "stutter" in the cookie name prefix so the auth cookie is named `techaro.lol-anubis-auth` instead of `techaro.lol-anubis-auth-auth`.
 - Make `cmd/containerbuild` support commas for separating elements of the `--docker-tags` argument as well as newlines.
@@ -33,15 +29,25 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fixes concurrency problems with very old browsers ([#1082](https://github.com/TecharoHQ/anubis/issues/1082)).
 - Randomly use the Refresh header instead of the meta refresh tag in the metarefresh challenge.
 - Update OpenRC service to truncate the runtime directory before starting Anubis.
- Make the git client profile more strictly match how the git client behaves.
- Make the default configuration reward users using normal browsers.
 - Allow multiple consecutive slashes in a row in application paths ([#754](https://github.com/TecharoHQ/anubis/issues/754)).
 - Add option to set `targetSNI` to special keyword 'auto' to indicate that it should be automatically set to the request Host name ([424](https://github.com/TecharoHQ/anubis/issues/424)).
- The Preact challenge has been removed from the default configuration. It will be deprecated in the future.

-### Better error messages
+### Major new features

-In order to make it easier for legitimate clients to debug issues with their browser configuration and Anubis, Anubis will emit internal error detail in base 64 so that administrators can chase down issues. Future versions of this may also include a variant that encrypts the error detail messages.
+#### WebAssembly support
+
+Anubis now supports running [WebAssembly based proof of work challenges](./admin/configuration/challenges/wasm.mdx) in addition to pure-JavaScript challenges. For more information, check the following links:
+
+- [Proof of Work (WebAssembly)](./admin/configuration/challenges/wasm.mdx)
+- [WebAssembly based proof of work implementation details](./developer/wasm.mdx)
+
+:::note
+
+Clients that don't have WebAssembly enabled will instead be served a pure JavaScript variant of the WebAssembly module. This will be much slower than the WebAssembly module, but will work.
+
+:::
+
+If you are packaging this for a Linux distribution, Anubis requires [binaryen](https://github.com/WebAssembly/binaryen) at exactly version 108. We are working on mitigating this dependency.

 ### Bug Fixes

--- a/docs/docs/admin/configuration/challenges/index.mdx
+++ b/docs/docs/admin/configuration/challenges/index.mdx
@@ -4,6 +4,7 @@ Anubis supports multiple challenge methods:

 - [Meta Refresh](./metarefresh.mdx)
 - [Preact](./preact.mdx)
- [Proof of Work](./proof-of-work.mdx)
+- [Proof of Work (JS)](./proof-of-work.mdx)
+- [Proof of Work (WebAssembly)](./wasm.mdx)

 Read the documentation to know which method is best for you.
--- a/docs/docs/admin/configuration/challenges/wasm.mdx
+++ b/docs/docs/admin/configuration/challenges/wasm.mdx
@@ -0,0 +1,66 @@
+# Proof of Work (WebAssembly)
+
+Anubis supports using [WebAssembly](https://en.wikipedia.org/wiki/WebAssembly) to speed up proof of work validation. Proof of work functions as a randomized delay to prevent clients from overwhelming your server with traffic. All WebAssembly proof of work functions are written in Rust. If clients are running in a context without WebAssembly support, Anubis uses a variant of the WebAssembly code compiled to JavaScript.
+
+Anubis offers the following WebAssembly proof of work functions:
+
+- [hashx](#hashx) (via the [`hashx`](https://docs.rs/hashx/latest/hashx/index.html) crate)
+- [sha256](#sha256) (via the [`sha2`](https://docs.rs/sha2/latest/sha2/) crate)
+
+:::note
+
+The difficulty values for the WebAssembly based checks are going to be much higher than the equivalent difficulty values for the [JavaScript based checks](./proof-of-work.mdx). Generally these count the number of leading _bits_ that much match instead of the number of leading _nibbles_ that must match. Here's a rough translation table:
+
+| `fast` difficulty | `sha256` difficulty | `hashx` difficulty |
+| :---------------- | :------------------ | :----------------- |
+| `4`               | `16`                | `15`               |
+| `2`               | `8`                 | `7`                |
+| `6`               | `24`                | `20`               |
+
+:::
+
+## `hashx`
+
+Uses the ASIC-resistant [hashx](https://github.com/tevador/hashx) as the proof of work function. This is resistant to GPU and ASIC attacks. In practice this means that users need to be using a standards-compliant browser to pass the challenge.
+
+Usage:
+
+```yaml
+thresholds:
+  - name: moderate-suspicion
+    expression:
+      all:
+        - weight >= 10
+        - weight < 20
+    action: CHALLENGE
+    challenge:
+      algorithm: hashx
+      difficulty: 16
+      report_as: 16
+```
+
+## `sha256`
+
+Uses [SHA-256](https://en.wikipedia.org/wiki/SHA-2) as the proof of work function.
+
+:::note
+
+This is included mostly as a fallback for usecases that specifically require this hashing function. There are known tools that solve this particular challenge. Prefer [hashx](#hashx) unless you know what you are doing.
+
+:::
+
+Usage:
+
+```yaml
+thresholds:
+  - name: moderate-suspicion
+    expression:
+      all:
+        - weight >= 10
+        - weight < 20
+    action: CHALLENGE
+    challenge:
+      algorithm: sha256
+      difficulty: 16
+      report_as: 16
+```
--- a/docs/docs/admin/configuration/redirect-domains.mdx
+++ b/docs/docs/admin/configuration/redirect-domains.mdx
@@ -32,7 +32,7 @@ sequenceDiagram
  participant Validation
  participant Evil Site

-  Hacker->>+User: Click on example.org with this solution
+  Hacker->>+User: Click on yoursite.com with this solution
  User->>+Validation: Here's a solution, send me to evilsite.com
  Validation->>+User: Here's a cookie, go to evilsite.com
  User->>+Evil Site: GET evilsite.com
@@ -46,14 +46,11 @@ Redirect domain not allowed

 ## Configuring allowed redirect domains

-By default, Anubis may redirect to any domain which could cause security issues in the unlikely case that an attacker passes a challenge for your browser and then tricks you into clicking a link to your domain.
-One can restrict the domains that Anubis can redirect to when passing a challenge by setting up `REDIRECT_DOMAINS` environment variable.
-If you need to set more than one domain, fill the environment variable with a comma-separated list of domain names.
-There is also glob matching support. You can pass `*.bugs.techaro.lol` to allow redirecting to anything ending with `.bugs.techaro.lol`. There is a limit of 4 wildcards.
+By default, Anubis will limit redirects to be on the same HTTP Host that Anubis is running on (EG: requests to yoursite.com cannot redirect outside of yoursite.com). If you need to set more than one domain, fill the `REDIRECT_DOMAINS` environment variable with a comma-separated list of domain names that Anubis should allow redirects to.

 :::note

-If you are hosting Anubis on a non-standard port (`https://example:com:8443`, `http://www.example.net:8080`, etc.), you must also include the port number here.
+These domains are _an exact string match_, they do not support wildcard matches.

 :::

@@ -63,7 +60,7 @@ If you are hosting Anubis on a non-standard port (`https://example:com:8443`, `h
 ```shell
 # anubis.env

-REDIRECT_DOMAINS="example.org,secretplans.example.org,*.test.example.org"
+REDIRECT_DOMAINS="yoursite.com,secretplans.yoursite.com"
 # ...
 ```

@@ -75,7 +72,7 @@ services:
  anubis-nginx:
    image: ghcr.io/techarohq/anubis:latest
    environment:
-      REDIRECT_DOMAINS: "example.org,secretplans.example.org,*.test.example.org"
+      REDIRECT_DOMAINS: "yoursite.com,secretplans.yoursite.com"
      # ...
 ```

@@ -89,7 +86,7 @@ Inside your Deployment, StatefulSet, or Pod:
  image: ghcr.io/techarohq/anubis:latest
  env:
    - name: REDIRECT_DOMAINS
-      value: "example.org,secretplans.example.org,*.test.example.org"
+      value: "yoursite.com,secretplans.yoursite.com"
    # ...
 ```

--- a/docs/docs/admin/installation.mdx
+++ b/docs/docs/admin/installation.mdx
@@ -95,7 +95,7 @@ Anubis uses these environment variables for configuration:
 | `OVERLAY_FOLDER`               | unset                   | <EO /> If set, treat the given path as an [overlay folder](./botstopper.mdx#custom-images-and-css), allowing you to customize CSS, fonts, images, and add other assets to BotStopper deployments.                                                                                                                                                                                                                                                                                                                                              |
 | `POLICY_FNAME`                 | unset                   | The file containing [bot policy configuration](./policies.mdx). See the bot policy documentation for more details. If unset, the default bot policy configuration is used.                                                                                                                                                                                                                                                                                                                                                                     |
 | `PUBLIC_URL`                   | unset                   | The externally accessible URL for this Anubis instance, used for constructing redirect URLs (e.g., for Traefik forwardAuth).                                                                                                                                                                                                                                                                                                                                                                                                                   |
-| `REDIRECT_DOMAINS`             | unset                   | Comma-separated list of domain names that Anubis should allow redirects to when passing a challenge. See [Redirect Domain Configuration](./configuration/redirect-domains) for more details.                                                                                                                                                                                                                                                                                          |
+| `REDIRECT_DOMAINS`             | unset                   | If set, restrict the domains that Anubis can redirect to when passing a challenge.<br/><br/>If this is unset, Anubis may redirect to any domain which could cause security issues in the unlikely case that an attacker passes a challenge for your browser and then tricks you into clicking a link to your domain.<br/><br/>Note that if you are hosting Anubis on a non-standard port (`https://example:com:8443`, `http://www.example.net:8080`, etc.), you must also include the port number here.                                        |
 | `SERVE_ROBOTS_TXT`             | `false`                 | If set `true`, Anubis will serve a default `robots.txt` file that disallows all known AI scrapers by name and then additionally disallows every scraper. This is useful if facts and circumstances make it difficult to change the underlying service to serve such a `robots.txt` file.                                                                                                                                                                                                                                                       |
 | `SLOG_LEVEL`                   | `INFO`                  | The log level for structured logging. Valid values are `DEBUG`, `INFO`, `WARN`, and `ERROR`. Set to `DEBUG` to see all requests, evaluations, and detailed diagnostic information.                                                                                                                                                                                                                                                                                                                                                             |
 | `SOCKET_MODE`                  | `0770`                  | _Only used when at least one of the `*_BIND_NETWORK` variables are set to `unix`._ The socket mode (permissions) for Unix domain sockets.                                                                                                                                                                                                                                                                                                                                                                                                      |
--- a/docs/docs/developer/wasm.mdx
+++ b/docs/docs/developer/wasm.mdx
@@ -0,0 +1,75 @@
+# WebAssembly based proof of work implementation details
+
+When an administrator configures Anubis to use a [WebAssembly based proof of work check](../admin/configuration/challenges/wasm.mdx), Anubis serves [WebAssembly modules](https://webassembly.github.io/spec/core/syntax/modules.html) to clients. Clients execute these WebAssembly modules in order to solve challenges and the server executes the same WebAssembly modules in order to validate solutions. This architecture allows the client and server to be implemented in lockstep, making it much easier to add future challenge methods as long as they meet the API contract.
+
+## Design goals
+
+Anubis WebAssembly modules are meant to provide the following properties:
+
+- **Small size** - Modules should not be bigger than 128Ki unless there is a very good reason for them to be larger.
+- **Minimal interfaces to the outside world** - These are meant to run hash functions. Minimize the inputs and outputs to the bare minimum required to run the program.
+- **The same code must run on both the client and server** - In order to simplify implementation, expansion, and technical debt: the same code must run on both the client and the server. When a client computes a solution, it uses the same validation code that the server uses to verify correctness.
+- **Execution as fast as possible** - This code is in a unique deployment scenario. At some level you want the code to execute slowly to better function as a rate limiter for incoming client requests. At another level, you want the code to execute as quickly as possible so that clients don't have a bad experience with the check taking "too long" or causing battery life impacts.
+
+Given these constraints, the following compromises are made:
+
+- WebAssembly modules are written in [Rust](https://rust-lang.org/), a modern systems programming language with best-in-class support for WebAssembly.
+- [Wazero](https://wazero.io/) is used on the server for running the validation logic in a secure sandbox.
+- A low-level Unix-like API is used to communicate between the host and the guest.
+
+## API contract
+
+Anubis WebAssembly modules have two main entrypoints:
+
+- `anubis_work`: Reads the data buffer and works until the validation function says that the solution is correct.
+- `anubis_validate`: Reads the verification and data buffers and ensures that both of them match and the solution is correct.
+
+For an example of an Anubis WebAssembly module, read the source code for the [`sha256` challenge](https://github.com/TecharoHQ/anubis/blob/main/wasm/pow/sha256/src/lib.rs).
+
+Anubis WebAssembly modules have the following de-facto global variables:
+
+- The data buffer: where the challenge-specific random data is stored and used for computing challenge results. Limit of 4096 bytes.
+- The result buffer: where the result hash is stored. Limit varies based on challenge.
+- The verification buffer: where a verification hash is written to for comparison with the computed hash in the result buffer. Limit varies based on challenge.
+
+Other functions:
+
+### Writing to the data buffer
+
+The data buffer is a write-only buffer with a maximum capacity of 4096 bytes. The host writes data into the buffer and sets the buffer length. This functions similarly to a Go slice.
+
+Usage:
+
+- Host: call `data_ptr` to discover the base pointer of the data buffer.
+- Guest: return the pointer.
+- Host: write up to 4096 bytes to guest memory starting at the base pointer.
+- Host: call `set_data_length` to tell the guest how large the data buffer is.
+- Guest: update that length as a global mutable variable.
+- Host: call `anubis_work` or set the verification buffer and call `anubis_validate`.
+
+### Reading from the result buffer
+
+The result buffer is a read-only buffer that contains the result computed by `anubis_work`. The size of this buffer varies based on the challenge implementation.
+
+After calling `anubis_work`:
+
+- Host: call `result_hash_ptr` to discover the base pointer of the result buffer.
+- Guest: return the pointer.
+- Host: call `result_hash_size` to discover the size of the result buffer in bytes.
+- Guest: return the size.
+- Host: read exactly that number of bytes to host memory.
+- Host: use that result to continue on with normal execution.
+
+### Writing to the verification buffer
+
+The verification buffer is a write-only buffer that contains the result computed by a client. The size of this buffer varies based on the challenge implementation.
+
+After setting the data buffer:
+
+- Host: call `verification_hash_ptr` to discover the base pointer of the verification buffer.
+- Guest: return that pointer.
+- Host: call `verification_hash_size` to discover the size of the verification buffer in bytes.
+- Guest: return the size.
+- Host: write exactly that number of bytes to guest memory starting at the base pointer.
+- Host: call `anubis_validate` with settings from the server-side challenge information.
+- Guest: compute both hashes, compare them and validate against the server-side challenge level. If valid: return true. If invalid: return false.
--- a/docs/src/pages/index.tsx
+++ b/docs/src/pages/index.tsx
@@ -18,10 +18,7 @@ function HomepageHeader() {
        </Heading>
        <p className="hero__subtitle">{siteConfig.tagline}</p>
        <div className={styles.buttons}>
-          <Link
-            className="button button--secondary button--lg"
-            to="/docs/category/environments"
-          >
+          <Link className="button button--secondary button--lg" to="/docs/">
            Get started
          </Link>
        </div>
--- a/go.mod
+++ b/go.mod
@@ -25,6 +25,7 @@ require (
 	github.com/sebest/xff v0.0.0-20210106013422-671bd2870b3a
 	github.com/shirou/gopsutil/v4 v4.25.6
 	github.com/testcontainers/testcontainers-go v0.38.0
+	github.com/tetratelabs/wazero v1.9.0
 	go.etcd.io/bbolt v1.4.2
 	golang.org/x/net v0.42.0
 	golang.org/x/text v0.27.0
@@ -87,7 +88,7 @@ require (
 	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
 	github.com/distribution/reference v0.6.0 // indirect
 	github.com/dlclark/regexp2 v1.11.5 // indirect
-	github.com/docker/docker v28.3.3+incompatible // indirect
+	github.com/docker/docker v28.3.2+incompatible // indirect
 	github.com/docker/go-connections v0.5.0 // indirect
 	github.com/docker/go-units v0.5.0 // indirect
 	github.com/dop251/goja v0.0.0-20250630131328-58d95d85e994 // indirect
--- a/go.sum
+++ b/go.sum
@@ -141,8 +141,8 @@ github.com/distribution/reference v0.6.0 h1:0IXCQ5g4/QMHHkarYzh5l+u8T3t73zM5Qvfr
 github.com/distribution/reference v0.6.0/go.mod h1:BbU0aIcezP1/5jX/8MP0YiH4SdvB5Y4f/wlDRiLyi3E=
 github.com/dlclark/regexp2 v1.11.5 h1:Q/sSnsKerHeCkc/jSTNq1oCm7KiVgUMZRDUoRu0JQZQ=
 github.com/dlclark/regexp2 v1.11.5/go.mod h1:DHkYz0B9wPfa6wondMfaivmHpzrQ3v9q8cnmRbL6yW8=
-github.com/docker/docker v28.3.3+incompatible h1:Dypm25kh4rmk49v1eiVbsAtpAsYURjYkaKubwuBdxEI=
-github.com/docker/docker v28.3.3+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
+github.com/docker/docker v28.3.2+incompatible h1:wn66NJ6pWB1vBZIilP8G3qQPqHy5XymfYn5vsqeA5oA=
+github.com/docker/docker v28.3.2+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
 github.com/docker/go-connections v0.5.0 h1:USnMq7hx7gwdVZq1L49hLXaFtUdTADjXGp+uj1Br63c=
 github.com/docker/go-connections v0.5.0/go.mod h1:ov60Kzw0kKElRwhNs9UlUHAE/F9Fe6GLaXnqyDdmEXc=
 github.com/docker/go-units v0.5.0 h1:69rxXcBk27SvSaaxTtLh/8llcHD8vYHT7WSdRZ/jvr4=
@@ -395,6 +395,8 @@ github.com/suzuki-shunsuke/urfave-cli-help-all v0.0.4 h1:YGHgrVjGTYHY98II6zijXUH
 github.com/suzuki-shunsuke/urfave-cli-help-all v0.0.4/go.mod h1:sSi6xaUaHfaqu32ECLeyE7NTMv+ZM5dW0JikhllaalY=
 github.com/testcontainers/testcontainers-go v0.38.0 h1:d7uEapLcv2P8AvH8ahLqDMMxda2W9gQN1nRbHS28HBw=
 github.com/testcontainers/testcontainers-go v0.38.0/go.mod h1:C52c9MoHpWO+C4aqmgSU+hxlR5jlEayWtgYrb8Pzz1w=
+github.com/tetratelabs/wazero v1.9.0 h1:IcZ56OuxrtaEz8UYNRHBrUa9bYeX9oVY93KspZZBf/I=
+github.com/tetratelabs/wazero v1.9.0/go.mod h1:TSbcXCfFP0L2FGkRPxHphadXPjo1T6W+CseNNY7EkjM=
 github.com/tklauser/go-sysconf v0.3.15 h1:VE89k0criAymJ/Os65CSn1IXaol+1wrsFHEB8Ol49K4=
 github.com/tklauser/go-sysconf v0.3.15/go.mod h1:Dmjwr6tYFIseJw7a3dRLJfsHAMXZ3nEnL/aZY+0IuI4=
 github.com/tklauser/numcpus v0.10.0 h1:18njr6LDBk1zuna922MgdjQuJFjrdppsZG60sHGfjso=
--- a/lib/anubis.go
+++ b/lib/anubis.go
@@ -37,6 +37,7 @@ import (
 	_ "github.com/TecharoHQ/anubis/lib/challenge/metarefresh"
 	_ "github.com/TecharoHQ/anubis/lib/challenge/preact"
 	_ "github.com/TecharoHQ/anubis/lib/challenge/proofofwork"
+	_ "github.com/TecharoHQ/anubis/lib/challenge/wasm"
 )

 var (
@@ -164,7 +165,7 @@ func (s *Server) maybeReverseProxy(w http.ResponseWriter, r *http.Request, httpS
 	if err != nil {
 		lg.Error("check failed", "err", err)
 		localizer := localization.GetLocalizer(r)
-		s.respondWithError(w, r, fmt.Sprintf("%s \"maybeReverseProxy\"", localizer.T("internal_server_error")), makeCode(err))
+		s.respondWithError(w, r, fmt.Sprintf("%s \"maybeReverseProxy\"", localizer.T("internal_server_error")))
 		return
 	}

@@ -267,13 +268,13 @@ func (s *Server) checkRules(w http.ResponseWriter, r *http.Request, cr policy.Ch
 		lg.Info("explicit deny")
 		if rule == nil {
 			lg.Error("rule is nil, cannot calculate checksum")
-			s.respondWithError(w, r, fmt.Sprintf("%s \"maybeReverseProxy.RuleDeny\"", localizer.T("internal_server_error")), makeCode(ErrActualAnubisBug))
+			s.respondWithError(w, r, fmt.Sprintf("%s \"maybeReverseProxy.RuleDeny\"", localizer.T("internal_server_error")))
 			return true
 		}
 		hash := rule.Hash()

 		lg.Debug("rule hash", "hash", hash)
-		s.respondWithStatus(w, r, fmt.Sprintf("%s %s", localizer.T("access_denied"), hash), "", s.policy.StatusCodes.Deny)
+		s.respondWithStatus(w, r, fmt.Sprintf("%s %s", localizer.T("access_denied"), hash), s.policy.StatusCodes.Deny)
 		return true
 	case config.RuleChallenge:
 		lg.Debug("challenge requested")
@@ -284,7 +285,7 @@ func (s *Server) checkRules(w http.ResponseWriter, r *http.Request, cr policy.Ch
 	default:
 		s.ClearCookie(w, CookieOpts{Path: cookiePath, Host: r.Host})
 		lg.Error("CONFIG ERROR: unknown rule", "rule", cr.Rule)
-		s.respondWithError(w, r, fmt.Sprintf("%s \"maybeReverseProxy.Rules\"", localizer.T("internal_server_error")), makeCode(ErrActualAnubisBug))
+		s.respondWithError(w, r, fmt.Sprintf("%s \"maybeReverseProxy.Rules\"", localizer.T("internal_server_error")))
 		return true
 	}
 	return false
@@ -311,7 +312,7 @@ func (s *Server) handleDNSBL(w http.ResponseWriter, r *http.Request, ip string,
 				localizer.T("dronebl_entry"),
 				resp.String(),
 				localizer.T("see_dronebl_lookup"),
-				ip), "", s.policy.StatusCodes.Deny)
+				ip), s.policy.StatusCodes.Deny)
 			return true
 		}
 	}
@@ -399,7 +400,7 @@ func (s *Server) PassChallenge(w http.ResponseWriter, r *http.Request) {
 	redirURL, err := url.ParseRequestURI(redir)
 	if err != nil {
 		lg.Error("invalid redirect", "err", err)
-		s.respondWithStatus(w, r, localizer.T("invalid_redirect"), makeCode(err), http.StatusBadRequest)
+		s.respondWithStatus(w, r, localizer.T("invalid_redirect"), http.StatusBadRequest)
 		return
 	}

@@ -408,7 +409,7 @@ func (s *Server) PassChallenge(w http.ResponseWriter, r *http.Request) {
 		// allowed
 	default:
 		lg.Error("XSS attempt blocked, invalid redirect scheme", "scheme", redirURL.Scheme)
-		s.respondWithStatus(w, r, localizer.T("invalid_redirect"), "", http.StatusBadRequest)
+		s.respondWithStatus(w, r, localizer.T("invalid_redirect"), http.StatusBadRequest)
 		return
 	}

@@ -422,7 +423,7 @@ func (s *Server) PassChallenge(w http.ResponseWriter, r *http.Request) {
 		s.ClearCookie(w, CookieOpts{Path: cookiePath, Host: r.Host})
 		s.ClearCookie(w, CookieOpts{Name: anubis.TestCookieName, Host: r.Host})
 		lg.Warn("user has cookies disabled, this is not an anubis bug")
-		s.respondWithError(w, r, localizer.T("cookies_disabled"), "")
+		s.respondWithError(w, r, localizer.T("cookies_disabled"))
 		return
 	}

@@ -431,19 +432,19 @@ func (s *Server) PassChallenge(w http.ResponseWriter, r *http.Request) {

 	urlParsed, err := r.URL.Parse(redir)
 	if err != nil {
-		s.respondWithError(w, r, localizer.T("redirect_not_parseable"), makeCode(err))
+		s.respondWithError(w, r, localizer.T("redirect_not_parseable"))
 		return
 	}
 	if (len(urlParsed.Host) > 0 && len(s.opts.RedirectDomains) != 0 && !matchRedirectDomain(s.opts.RedirectDomains, urlParsed.Host)) || urlParsed.Host != r.URL.Host {
 		lg.Debug("domain not allowed", "domain", urlParsed.Host)
-		s.respondWithError(w, r, localizer.T("redirect_domain_not_allowed"), "")
+		s.respondWithError(w, r, localizer.T("redirect_domain_not_allowed"))
 		return
 	}

 	cr, rule, err := s.check(r, lg)
 	if err != nil {
 		lg.Error("check failed", "err", err)
-		s.respondWithError(w, r, fmt.Sprintf("%s \"passChallenge\"", localizer.T("internal_server_error")), makeCode(err))
+		s.respondWithError(w, r, fmt.Sprintf("%s \"passChallenge\"", localizer.T("internal_server_error")))
 		return
 	}
 	lg = lg.With("check_result", cr)
@@ -451,20 +452,20 @@ func (s *Server) PassChallenge(w http.ResponseWriter, r *http.Request) {
 	chall, err := s.getChallenge(r)
 	if err != nil {
 		lg.Error("getChallenge failed", "err", err)
-		s.respondWithError(w, r, fmt.Sprintf("%s: %s", localizer.T("internal_server_error"), rule.Challenge.Algorithm), makeCode(err))
+		s.respondWithError(w, r, fmt.Sprintf("%s: %s", localizer.T("internal_server_error"), rule.Challenge.Algorithm))
 		return
 	}

 	if chall.Spent {
 		lg.Error("double spend prevented", "reason", "double_spend")
-		s.respondWithError(w, r, fmt.Sprintf("%s: %s", localizer.T("internal_server_error"), "double_spend"), "")
+		s.respondWithError(w, r, fmt.Sprintf("%s: %s", localizer.T("internal_server_error"), "double_spend"))
 		return
 	}

 	impl, ok := challenge.Get(chall.Method)
 	if !ok {
 		lg.Error("check failed", "err", err)
-		s.respondWithError(w, r, fmt.Sprintf("%s: %s", localizer.T("internal_server_error"), rule.Challenge.Algorithm), makeCode(ErrActualAnubisBug))
+		s.respondWithError(w, r, fmt.Sprintf("%s: %s", localizer.T("internal_server_error"), rule.Challenge.Algorithm))
 		return
 	}

@@ -487,11 +488,11 @@ func (s *Server) PassChallenge(w http.ResponseWriter, r *http.Request) {
 			switch {
 			case errors.Is(err, challenge.ErrFailed):
 				lg.Error("challenge failed", "err", err)
-				s.respondWithStatus(w, r, cerr.PublicReason, makeCode(err), cerr.StatusCode)
+				s.respondWithStatus(w, r, cerr.PublicReason, cerr.StatusCode)
 				return
 			case errors.Is(err, challenge.ErrInvalidFormat), errors.Is(err, challenge.ErrMissingField):
 				lg.Error("invalid challenge format", "err", err)
-				s.respondWithError(w, r, cerr.PublicReason, makeCode(err))
+				s.respondWithError(w, r, cerr.PublicReason)
 				return
 			}
 		}
@@ -511,7 +512,7 @@ func (s *Server) PassChallenge(w http.ResponseWriter, r *http.Request) {
 		if r.Header.Get(s.opts.JWTRestrictionHeader) == "" {
 			lg.Error("JWTRestrictionHeader is set in config but not found in request, please check your reverse proxy config.")
 			s.ClearCookie(w, CookieOpts{Path: cookiePath, Host: r.Host})
-			s.respondWithError(w, r, "failed to sign JWT", makeCode(err))
+			s.respondWithError(w, r, "failed to sign JWT")
 			return
 		} else {
 			claims["restriction"] = internal.SHA256sum(r.Header.Get(s.opts.JWTRestrictionHeader))
@@ -525,7 +526,7 @@ func (s *Server) PassChallenge(w http.ResponseWriter, r *http.Request) {
 	if err != nil {
 		lg.Error("failed to sign JWT", "err", err)
 		s.ClearCookie(w, CookieOpts{Path: cookiePath, Host: r.Host})
-		s.respondWithError(w, r, localizer.T("failed_to_sign_jwt"), makeCode(err))
+		s.respondWithError(w, r, localizer.T("failed_to_sign_jwt"))
 		return
 	}

--- a/lib/anubis_test.go
+++ b/lib/anubis_test.go
@@ -194,7 +194,6 @@ func (u *userAgentRoundTripper) RoundTrip(req *http.Request) (*http.Response, er
 	// Only set if not already present
 	req = req.Clone(req.Context()) // avoid mutating original request
 	req.Header.Set("User-Agent", "Mozilla/5.0")
-	req.Header.Set("Accept-Encoding", "gzip")
 	return u.rt.RoundTrip(req)
 }

--- a/lib/challenge/interface.go
+++ b/lib/challenge/interface.go
@@ -58,7 +58,7 @@ type ValidateInput struct {

 type Impl interface {
 	// Setup registers any additional routes with the Impl for assets or API routes.
-	Setup(mux *http.ServeMux)
+	Setup(mux *http.ServeMux) error

 	// Issue a new challenge to the user, called by the Anubis.
 	Issue(w http.ResponseWriter, r *http.Request, lg *slog.Logger, in *IssueInput) (templ.Component, error)
--- a/lib/challenge/metarefresh/metarefresh.go
+++ b/lib/challenge/metarefresh/metarefresh.go
@@ -21,7 +21,7 @@ func init() {

 type Impl struct{}

-func (i *Impl) Setup(mux *http.ServeMux) {}
+func (i *Impl) Setup(mux *http.ServeMux) error { return nil }

 func (i *Impl) Issue(w http.ResponseWriter, r *http.Request, lg *slog.Logger, in *challenge.IssueInput) (templ.Component, error) {
 	u, err := r.URL.Parse(anubis.BasePrefix + "/.within.website/x/cmd/anubis/api/pass-challenge")
--- a/lib/challenge/preact/js/app.tsx
+++ b/lib/challenge/preact/js/app.tsx
@@ -1,6 +1,6 @@
 import { render, h, Fragment } from "preact";
 import { useState, useEffect } from "preact/hooks";
-import { g, j, r, u, x } from "./xeact.js";
+import { g, j, r, u, x } from "../../../../web/lib/xeact";
 import { Sha256 } from "@aws-crypto/sha256-js";

 /** @jsx h */
--- a/lib/challenge/preact/preact.go
+++ b/lib/challenge/preact/preact.go
@@ -36,7 +36,7 @@ func init() {

 type impl struct{}

-func (i *impl) Setup(mux *http.ServeMux) {}
+func (i *impl) Setup(mux *http.ServeMux) error { return nil }

 func (i *impl) Issue(w http.ResponseWriter, r *http.Request, lg *slog.Logger, in *challenge.IssueInput) (templ.Component, error) {
 	u, err := r.URL.Parse(anubis.BasePrefix + "/.within.website/x/cmd/anubis/api/pass-challenge")
--- a/lib/challenge/proofofwork/proofofwork.go
+++ b/lib/challenge/proofofwork/proofofwork.go
@@ -25,7 +25,7 @@ type Impl struct {
 	Algorithm string
 }

-func (i *Impl) Setup(mux *http.ServeMux) {}
+func (i *Impl) Setup(mux *http.ServeMux) error { return nil }

 func (i *Impl) Issue(w http.ResponseWriter, r *http.Request, lg *slog.Logger, in *chall.IssueInput) (templ.Component, error) {
 	loc := localization.GetLocalizer(r)
--- a/lib/challenge/wasm/wasm.go
+++ b/lib/challenge/wasm/wasm.go
@@ -0,0 +1,102 @@
+package wasm
+
+import (
+	"context"
+	"encoding/hex"
+	"fmt"
+	"log/slog"
+	"net/http"
+	"strconv"
+
+	chall "github.com/TecharoHQ/anubis/lib/challenge"
+	"github.com/TecharoHQ/anubis/lib/localization"
+	"github.com/TecharoHQ/anubis/wasm"
+	"github.com/TecharoHQ/anubis/web"
+	"github.com/a-h/templ"
+)
+
+//go:generate go tool github.com/a-h/templ/cmd/templ generate
+
+func init() {
+	chall.Register("hashx", &Impl{algorithm: "hashx"})
+	chall.Register("sha256", &Impl{algorithm: "sha256"})
+}
+
+type Impl struct {
+	algorithm string
+	runner    *wasm.Runner
+}
+
+func (i *Impl) Setup(mux *http.ServeMux) error {
+	fname := fmt.Sprintf("static/wasm/simd128/%s.wasm", i.algorithm)
+	fin, err := web.Static.Open(fname)
+	if err != nil {
+		return err
+	}
+	defer fin.Close()
+
+	i.runner, err = wasm.NewRunner(context.Background(), fname, fin)
+
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (i *Impl) Issue(w http.ResponseWriter, r *http.Request, lg *slog.Logger, in *chall.IssueInput) (templ.Component, error) {
+	loc := localization.GetLocalizer(r)
+	return page(loc), nil
+}
+
+func (i *Impl) Validate(r *http.Request, lg *slog.Logger, in *chall.ValidateInput) error {
+	nonceStr := r.FormValue("nonce")
+	if nonceStr == "" {
+		return chall.NewError("validate", "invalid response", fmt.Errorf("%w nonce", chall.ErrMissingField))
+	}
+
+	nonce, err := strconv.Atoi(nonceStr)
+	if err != nil {
+		return chall.NewError("validate", "invalid response", fmt.Errorf("%w: nonce: %w", chall.ErrInvalidFormat, err))
+
+	}
+
+	elapsedTimeStr := r.FormValue("elapsedTime")
+	if elapsedTimeStr == "" {
+		return chall.NewError("validate", "invalid response", fmt.Errorf("%w elapsedTime", chall.ErrMissingField))
+	}
+
+	elapsedTime, err := strconv.ParseFloat(elapsedTimeStr, 64)
+	if err != nil {
+		return chall.NewError("validate", "invalid response", fmt.Errorf("%w: elapsedTime: %w", chall.ErrInvalidFormat, err))
+	}
+
+	response := r.FormValue("response")
+	if response == "" {
+		return chall.NewError("validate", "invalid response", fmt.Errorf("%w response", chall.ErrMissingField))
+	}
+
+	challengeBytes, err := hex.DecodeString(in.Challenge.RandomData)
+	if err != nil {
+		return chall.NewError("validate", "invalid random data", fmt.Errorf("can't decode random data: %w", err))
+	}
+
+	gotBytes, err := hex.DecodeString(response)
+	if err != nil {
+		return chall.NewError("validate", "invalid client data format", fmt.Errorf("%w response", chall.ErrInvalidFormat))
+	}
+
+	ok, err := i.runner.Verify(r.Context(), challengeBytes, gotBytes, uint32(nonce), uint32(in.Rule.Challenge.Difficulty))
+	if err != nil {
+		return chall.NewError("validate", "internal WASM error", fmt.Errorf("can't run wasm validation logic: %w", err))
+	}
+
+	if !ok {
+		return chall.NewError("verify", "client calculated wrong data", fmt.Errorf("%w: response invalid: %s", chall.ErrFailed, response))
+	}
+
+	lg.Debug("challenge took", "elapsedTime", elapsedTime)
+	chall.TimeTaken.WithLabelValues(i.algorithm).Observe(elapsedTime)
+
+	return nil
+}
--- a/lib/challenge/wasm/wasm.templ
+++ b/lib/challenge/wasm/wasm.templ
@@ -0,0 +1,44 @@
+package wasm
+
+import (
+	"github.com/TecharoHQ/anubis"
+	"github.com/TecharoHQ/anubis/lib/localization"
+)
+
+templ page(localizer *localization.SimpleLocalizer) {
+	<div class="centered-div">
+		<img id="image" style="width:100%;max-width:256px;" src={ anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version }/>
+		<img style="display:none;" style="width:100%;max-width:256px;" src={ anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=" + anubis.Version }/>
+		<p id="status">{ localizer.T("loading") }</p>
+		<script async type="module" src={ anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/js/main.mjs?cacheBuster=" + anubis.Version }></script>
+		<div id="progress" role="progressbar" aria-labelledby="status">
+			<div class="bar-inner"></div>
+		</div>
+		<details>
+			if anubis.UseSimplifiedExplanation {
+				<p>
+					{ localizer.T("simplified_explanation") }
+				</p>
+			} else {
+				<p>
+					{ localizer.T("ai_companies_explanation") }
+				</p>
+				<p>
+					{ localizer.T("anubis_compromise") }
+				</p>
+				<p>
+					{ localizer.T("hack_purpose") }
+				</p>
+				<p>
+					{ localizer.T("jshelter_note") }
+				</p>
+			}
+		</details>
+		<noscript>
+			<p>
+				{ localizer.T("javascript_required") }
+			</p>
+		</noscript>
+		<div id="testarea"></div>
+	</div>
+}
--- a/lib/challenge/wasm/wasm_templ.go
+++ b/lib/challenge/wasm/wasm_templ.go
@@ -0,0 +1,190 @@
+// Code generated by templ - DO NOT EDIT.
+
+// templ: version: v0.3.924
+package wasm
+
+//lint:file-ignore SA4006 This context is only used if a nested component is present.
+
+import "github.com/a-h/templ"
+import templruntime "github.com/a-h/templ/runtime"
+
+import (
+	"github.com/TecharoHQ/anubis"
+	"github.com/TecharoHQ/anubis/lib/localization"
+)
+
+func page(localizer *localization.SimpleLocalizer) templ.Component {
+	return templruntime.GeneratedTemplate(func(templ_7745c5c3_Input templruntime.GeneratedComponentInput) (templ_7745c5c3_Err error) {
+		templ_7745c5c3_W, ctx := templ_7745c5c3_Input.Writer, templ_7745c5c3_Input.Context
+		if templ_7745c5c3_CtxErr := ctx.Err(); templ_7745c5c3_CtxErr != nil {
+			return templ_7745c5c3_CtxErr
+		}
+		templ_7745c5c3_Buffer, templ_7745c5c3_IsBuffer := templruntime.GetBuffer(templ_7745c5c3_W)
+		if !templ_7745c5c3_IsBuffer {
+			defer func() {
+				templ_7745c5c3_BufErr := templruntime.ReleaseBuffer(templ_7745c5c3_Buffer)
+				if templ_7745c5c3_Err == nil {
+					templ_7745c5c3_Err = templ_7745c5c3_BufErr
+				}
+			}()
+		}
+		ctx = templ.InitializeContext(ctx)
+		templ_7745c5c3_Var1 := templ.GetChildren(ctx)
+		if templ_7745c5c3_Var1 == nil {
+			templ_7745c5c3_Var1 = templ.NopComponent
+		}
+		ctx = templ.ClearChildren(ctx)
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 1, "<div class=\"centered-div\"><img id=\"image\" style=\"width:100%;max-width:256px;\" src=\"")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		var templ_7745c5c3_Var2 string
+		templ_7745c5c3_Var2, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version)
+		if templ_7745c5c3_Err != nil {
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `wasm.templ`, Line: 10, Col: 165}
+		}
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var2))
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 2, "\"> <img style=\"display:none;\" style=\"width:100%;max-width:256px;\" src=\"")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		var templ_7745c5c3_Var3 string
+		templ_7745c5c3_Var3, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=" + anubis.Version)
+		if templ_7745c5c3_Err != nil {
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `wasm.templ`, Line: 11, Col: 174}
+		}
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var3))
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 3, "\"><p id=\"status\">")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		var templ_7745c5c3_Var4 string
+		templ_7745c5c3_Var4, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("loading"))
+		if templ_7745c5c3_Err != nil {
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `wasm.templ`, Line: 12, Col: 41}
+		}
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var4))
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 4, "</p><script async type=\"module\" src=\"")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		var templ_7745c5c3_Var5 string
+		templ_7745c5c3_Var5, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/js/main.mjs?cacheBuster=" + anubis.Version)
+		if templ_7745c5c3_Err != nil {
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `wasm.templ`, Line: 13, Col: 136}
+		}
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var5))
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 5, "\"></script><div id=\"progress\" role=\"progressbar\" aria-labelledby=\"status\"><div class=\"bar-inner\"></div></div><details>")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		if anubis.UseSimplifiedExplanation {
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 6, "<p>")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			var templ_7745c5c3_Var6 string
+			templ_7745c5c3_Var6, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("simplified_explanation"))
+			if templ_7745c5c3_Err != nil {
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `wasm.templ`, Line: 20, Col: 44}
+			}
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var6))
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 7, "</p>")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+		} else {
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 8, "<p>")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			var templ_7745c5c3_Var7 string
+			templ_7745c5c3_Var7, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("ai_companies_explanation"))
+			if templ_7745c5c3_Err != nil {
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `wasm.templ`, Line: 24, Col: 46}
+			}
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var7))
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 9, "</p><p>")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			var templ_7745c5c3_Var8 string
+			templ_7745c5c3_Var8, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("anubis_compromise"))
+			if templ_7745c5c3_Err != nil {
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `wasm.templ`, Line: 27, Col: 39}
+			}
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var8))
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 10, "</p><p>")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			var templ_7745c5c3_Var9 string
+			templ_7745c5c3_Var9, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("hack_purpose"))
+			if templ_7745c5c3_Err != nil {
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `wasm.templ`, Line: 30, Col: 34}
+			}
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var9))
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 11, "</p><p>")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			var templ_7745c5c3_Var10 string
+			templ_7745c5c3_Var10, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("jshelter_note"))
+			if templ_7745c5c3_Err != nil {
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `wasm.templ`, Line: 33, Col: 35}
+			}
+			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var10))
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 12, "</p>")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 13, "</details><noscript><p>")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		var templ_7745c5c3_Var11 string
+		templ_7745c5c3_Var11, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("javascript_required"))
+		if templ_7745c5c3_Err != nil {
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `wasm.templ`, Line: 39, Col: 40}
+		}
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var11))
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 14, "</p></noscript><div id=\"testarea\"></div></div>")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		return nil
+	})
+}
+
+var _ = templruntime.GeneratedTemplate
--- a/lib/config.go
+++ b/lib/config.go
@@ -175,7 +175,9 @@ func New(opts Options) (*Server, error) {

 	for _, implKind := range challenge.Methods() {
 		impl, _ := challenge.Get(implKind)
-		impl.Setup(mux)
+		if err := impl.Setup(mux); err != nil {
+			return nil, fmt.Errorf("failed to init challenge method %s: %w", implKind, err)
+		}
 	}

 	result.mux = mux
--- a/lib/http.go
+++ b/lib/http.go
@@ -1,9 +1,6 @@
 package lib

 import (
-	"bytes"
-	"compress/gzip"
-	"encoding/base64"
 	"errors"
 	"fmt"
 	"math/rand"
@@ -20,7 +17,6 @@ import (
 	"github.com/TecharoHQ/anubis/lib/localization"
 	"github.com/TecharoHQ/anubis/lib/policy"
 	"github.com/TecharoHQ/anubis/web"
-	"github.com/TecharoHQ/anubis/xess"
 	"github.com/a-h/templ"
 	"github.com/golang-jwt/jwt/v5"
 	"golang.org/x/net/publicsuffix"
@@ -28,10 +24,6 @@ import (

 var domainMatchRegexp = regexp.MustCompile(`^((xn--)?[a-z0-9]+(-[a-z0-9]+)*\.)+[a-z]{2,}$`)

-var (
-	ErrActualAnubisBug = errors.New("this is an actual bug in Anubis, please file an issue with the magic string 'taco bell'")
-)
-
 // matchRedirectDomain returns true if host matches any of the allowed redirect
 // domain patterns. Patterns may contain '*' which are matched using the
 // internal glob matcher. Matching is case-insensitive on hostnames.
@@ -152,46 +144,6 @@ func randomChance(n int) bool {
 	return rand.Intn(n) == 0
 }

-// XXX(Xe): generated by ChatGPT
-func rot13(s string) string {
-	rotated := make([]rune, len(s))
-	for i, c := range s {
-		switch {
-		case c >= 'A' && c <= 'Z':
-			rotated[i] = 'A' + ((c - 'A' + 13) % 26)
-		case c >= 'a' && c <= 'z':
-			rotated[i] = 'a' + ((c - 'a' + 13) % 26)
-		default:
-			rotated[i] = c
-		}
-	}
-	return string(rotated)
-}
-
-func makeCode(err error) string {
-	var buf bytes.Buffer
-	gzw := gzip.NewWriter(&buf)
-	errStr := fmt.Sprintf("internal error: %v", err)
-
-	fmt.Fprintln(gzw, rot13(errStr))
-	if err := gzw.Close(); err != nil {
-		panic("can't write to gzip in ram buffer")
-	}
-	const width = 16
-
-	enc := base64.StdEncoding.EncodeToString(buf.Bytes())
-	var builder strings.Builder
-	for i := 0; i < len(enc); i += width {
-		end := i + width
-		if end > len(enc) {
-			end = len(enc)
-		}
-		builder.WriteString(enc[i:end])
-		builder.WriteByte('\n')
-	}
-	return builder.String()
-}
-
 func (s *Server) RenderIndex(w http.ResponseWriter, r *http.Request, cr policy.CheckResult, rule *policy.Bot, returnHTTPStatusOnly bool) {
 	localizer := localization.GetLocalizer(r)

@@ -202,7 +154,7 @@ func (s *Server) RenderIndex(w http.ResponseWriter, r *http.Request, cr policy.C
 		} else {
 			redirectURL, err := s.constructRedirectURL(r)
 			if err != nil {
-				s.respondWithStatus(w, r, err.Error(), "", http.StatusBadRequest)
+				s.respondWithStatus(w, r, err.Error(), http.StatusBadRequest)
 				return
 			}
 			http.Redirect(w, r, redirectURL, http.StatusTemporaryRedirect)
@@ -214,7 +166,7 @@ func (s *Server) RenderIndex(w http.ResponseWriter, r *http.Request, cr policy.C

 	if !strings.Contains(r.Header.Get("Accept-Encoding"), "gzip") && randomChance(64) {
 		lg.Error("client was given a challenge but does not in fact support gzip compression")
-		s.respondWithError(w, r, localizer.T("client_error_browser"), "")
+		s.respondWithError(w, r, localizer.T("client_error_browser"))
 		return
 	}

@@ -223,7 +175,7 @@ func (s *Server) RenderIndex(w http.ResponseWriter, r *http.Request, cr policy.C
 	if err != nil {
 		lg.Error("can't get challenge", "err", err)
 		s.ClearCookie(w, CookieOpts{Name: anubis.TestCookieName, Host: r.Host})
-		s.respondWithError(w, r, fmt.Sprintf("%s: %s", localizer.T("internal_server_error"), rule.Challenge.Algorithm), makeCode(err))
+		s.respondWithError(w, r, fmt.Sprintf("%s: %s", localizer.T("internal_server_error"), rule.Challenge.Algorithm))
 		return
 	}

@@ -250,7 +202,7 @@ func (s *Server) RenderIndex(w http.ResponseWriter, r *http.Request, cr policy.C
 	if !ok {
 		lg.Error("check failed", "err", "can't get algorithm", "algorithm", rule.Challenge.Algorithm)
 		s.ClearCookie(w, CookieOpts{Name: anubis.TestCookieName, Host: r.Host})
-		s.respondWithError(w, r, fmt.Sprintf("%s: %s", localizer.T("internal_server_error"), rule.Challenge.Algorithm), makeCode(err))
+		s.respondWithError(w, r, fmt.Sprintf("%s: %s", localizer.T("internal_server_error"), rule.Challenge.Algorithm))
 		return
 	}

@@ -265,7 +217,7 @@ func (s *Server) RenderIndex(w http.ResponseWriter, r *http.Request, cr policy.C
 	component, err := impl.Issue(w, r, lg, in)
 	if err != nil {
 		lg.Error("[unexpected] challenge component render failed, please open an issue", "err", err) // This is likely a bug in the template. Should never be triggered as CI tests for this.
-		s.respondWithError(w, r, fmt.Sprintf("%s \"RenderIndex\"", localizer.T("internal_server_error")), makeCode(err))
+		s.respondWithError(w, r, fmt.Sprintf("%s \"RenderIndex\"", localizer.T("internal_server_error")))
 		return
 	}

@@ -316,23 +268,20 @@ func (s *Server) RenderBench(w http.ResponseWriter, r *http.Request) {
 	).ServeHTTP(w, r)
 }

-func (s *Server) respondWithError(w http.ResponseWriter, r *http.Request, message, code string) {
-	s.respondWithStatus(w, r, message, code, http.StatusInternalServerError)
+func (s *Server) respondWithError(w http.ResponseWriter, r *http.Request, message string) {
+	s.respondWithStatus(w, r, message, http.StatusInternalServerError)
 }

-func (s *Server) respondWithStatus(w http.ResponseWriter, r *http.Request, msg, code string, status int) {
+func (s *Server) respondWithStatus(w http.ResponseWriter, r *http.Request, msg string, status int) {
 	localizer := localization.GetLocalizer(r)

-	templ.Handler(web.Base(localizer.T("oh_noes"), web.ErrorPage(msg, s.opts.WebmasterEmail, code, localizer), s.policy.Impressum, localizer), templ.WithStatus(status)).ServeHTTP(w, r)
+	templ.Handler(web.Base(localizer.T("oh_noes"), web.ErrorPage(msg, s.opts.WebmasterEmail, localizer), s.policy.Impressum, localizer), templ.WithStatus(status)).ServeHTTP(w, r)
 }

 func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	if strings.HasPrefix(r.URL.Path, anubis.BasePrefix+anubis.StaticPath) {
 		s.mux.ServeHTTP(w, r)
 		return
-	} else if strings.HasPrefix(r.URL.Path, anubis.BasePrefix+xess.BasePrefix) {
-		s.mux.ServeHTTP(w, r)
-		return
 	}

 	s.maybeReverseProxyOrPage(w, r)
@@ -371,7 +320,7 @@ func (s *Server) ServeHTTPNext(w http.ResponseWriter, r *http.Request) {
 		redir := r.FormValue("redir")
 		urlParsed, err := r.URL.Parse(redir)
 		if err != nil {
-			s.respondWithStatus(w, r, localizer.T("redirect_not_parseable"), makeCode(err), http.StatusBadRequest)
+			s.respondWithStatus(w, r, localizer.T("redirect_not_parseable"), http.StatusBadRequest)
 			return
 		}

@@ -383,7 +332,7 @@ func (s *Server) ServeHTTPNext(w http.ResponseWriter, r *http.Request) {
 		if hostNotAllowed || hostMismatch {
 			lg := internal.GetRequestLogger(s.logger, r)
 			lg.Debug("domain not allowed", "domain", urlParsed.Host)
-			s.respondWithStatus(w, r, localizer.T("redirect_domain_not_allowed"), makeCode(err), http.StatusBadRequest)
+			s.respondWithStatus(w, r, localizer.T("redirect_domain_not_allowed"), http.StatusBadRequest)
 			return
 		}

--- a/lib/localization/locales/nn.json
+++ b/lib/localization/locales/nn.json
@@ -5,17 +5,17 @@
  "protected_from": "frå",
  "made_with": "Laga med ❤️ i 🇨🇦",
  "mascot_design": "Maskotdesign av",
-  "ai_companies_explanation": "Du ser dette av di administratoren av denne netstaden har sett opp Anubis for å verna tenaren mot plaga av KI-selskap som aggressivt skrapar netstader. Dette kan, og held fram med å, forårsaka driftstans for netstadene, som gjer ressursane deira utilgjengelege for alle.",
-  "anubis_compromise": "Anubis er eit kompromiss. Anubis nøyter eit «Proof-of-Work»-skjema som liknar på Hashcash, eit liknande skjema for å filtrera bort søppel-e-post. Idéen er at i små meng kan den ytterlegare lastinga lett ignorerast, men ved storslegen skraping vert byrda større og større og gjer det å skrapa mykje meir dyrt.",
-  "hack_purpose": "Til sjuande og sist er dette ei plasshaldarløysing slik at meir tid kan verta nøytt på å fingeravtrykkja og identifisera hovudlause netlesarar (t.d. via korleis dei attgjev skrifttypar) slik at utfordringssida for arbeidsprosessen ikkje treng å synast for brukarar som er nok legitime.",
+  "ai_companies_explanation": "Du ser dette av di administratoren av denne nettstaden har sett opp Anubis for å verne sørvaren mot plaga av KI-selskap som aggressivt skrapar nettstader. Dette kan, og held frem med å, forårsake driftstans for nettstadene, som gjer ressursane deira utilgjengelege for alle.",
+  "anubis_compromise": "Anubis er eit kompromiss. Anubis brukar eit «Proof-of-Work»-skjema som liknar på Hashcash, eit liknande skjema for å redusere søppel-e-post. Idéen er at ved småstilte tilfelle er den ytterlegare lastinga ignorerbar, men ved storstilt skraping samlar ho på seg fart og gjer det å skrapa mykje meir dyrt.",
+  "hack_purpose": "Til sjuande og sist er dette ei plasshaldarløysing slik at meir tid kan brukast på fingeravtrykk og identifisering av hovudlause nettlesarar (t.d. via korleis dei attgjev skrifttypar) slik at utfordringssida for arbeidsprosessen ikkje treng å presenterast for brukarar som er mykje meir sannsynleg å vera legitime.",
  "jshelter_note": "NB: Anubis krev bruk av moderne JavaScript-funksjonar som tillegg som JShelter slår av. Venlegast slå av JShelter eller liknande tillegg for dette domenet.",
-  "version_info": "Denne netstaden køyrer Anubis-utgåve",
+  "version_info": "Denne nettstaden køyrer Anubis-utgåve",
  "try_again": "Prøv att",
-  "go_home": "Far heim",
-  "contact_webmaster": "eller om du tykkjer at du ikkje burde vera blokkert, venlegast tak kontakt med administratoren på",
-  "connection_security": "Venlegast venta medan vi stadfester tryggleiken av tilkoplinga di.",
-  "javascript_required": "Du lyt diverre slå på JavaScript for å koma deg forbi denne utfordringa. Dette krevst fordi KI-selskap har endra sosialkontrakten om korleis netstadsverting fungerer. Ei ikkje-JS-løysing er i gang med å verta skapt.",
-  "benchmark_requires_js": "JavaScript må vera slegen på for å køyra samanlikningsverktøyet.",
+  "go_home": "Gå heim",
+  "contact_webmaster": "eller om du synest at du ikkje burde vera blokkert, venlegast tak kontakt med administratoren på",
+  "connection_security": "Venlegast vent medan vi stadfester tryggleiken av tilkoplinga di.",
+  "javascript_required": "Du lyt diverre slå på JavaScript for å koma deg forbi denne utfordringa. Dette krevst av di KI-selskap har endra sosialkontrakten om korleis nettstadsverting fungerer. Ei ikkje-JS-løysing er i gang med å skapast.",
+  "benchmark_requires_js": "JavaScript må vera slegen på for å køyre samanlikningsverktøyet.",
  "difficulty": "Vanskenivå:",
  "algorithm": "Algoritme:",
  "compare": "Jamfør:",
@@ -25,9 +25,9 @@
  "iters_a": "Oppattakingar A",
  "time_b": "Tid B",
  "iters_b": "Oppattakingar B",
-  "static_check_endpoint": "Dette er berre eit sjekkeendepunkt for din omvende proxy å nøyta.",
-  "authorization_required": "Legitimering krevst",
-  "cookies_disabled": "Netlesaren din er konfigurert for å avslå informasjonskapslar. Anubis krev informasjonskapslar for å stadfesta at du er ein ekte brukar. Venlegast slå på informasjonskapslar på dette domenet.",
+  "static_check_endpoint": "Dette er berre eit sjekkeendepunkt for din omvende proxy å bruke.",
+  "authorization_required": "Legitimasjon krevst",
+  "cookies_disabled": "Nettlesaren din er konfigurert for å avslå informasjonskapslar. Anubis krev informasjonskapslar for å stadfeste at du er ein ekte brukar. Venlegast slå på informasjonskapslar på dette domenet.",
  "access_denied": "Tilgang nekta: feilkode",
  "dronebl_entry": "DroneBL rapporterte ei oppføring.",
  "see_dronebl_lookup": "sjå",
@@ -35,32 +35,32 @@
  "invalid_redirect": "Ugyldig omdirigering",
  "redirect_not_parseable": "Omdirigerings-URL-en kunne ikkje tolkast",
  "redirect_domain_not_allowed": "Omdirigeringsdomenet er ikkje tillate",
-  "failed_to_sign_jwt": "mislukkast i å signera JWT",
+  "failed_to_sign_jwt": "mislukkast i å signere JWT",
  "invalid_invocation": "Ugyldig framkalling av MakeChallenge",
-  "client_error_browser": "Klientfeil: Venlegast stadfest at netlesaren din er oppdatert og prøv att seinare.",
+  "client_error_browser": "Klientfeil: Venlegast stadfest at nettlesaren din er oppdatert og prøv att seinare.",
  "oh_noes": "Å nei!",
  "benchmarking_anubis": "Samanliknar Anubis!",
  "you_are_not_a_bot": "Du er ikkje ein bot!",
  "making_sure_not_bot": "Stadfester at du ikkje er ein bot!",
  "celphase": "CELPHASE",
-  "js_web_crypto_error": "Netlesaren din har ikkje eit fungerande web.crypto-element. Ser du dette med ei sikker tilkopling?",
-  "js_web_workers_error": "Netlesaren din stør ikkje netarbeidarar (Anubis nøyter dei for å undangå å frysa netlesaren din). Har du eit tillegg som JShelter installert?",
-  "js_cookies_error": "Netlesaren lagrar ikkje informasjonskapslar. Anubis nøyter informasjonskapslar for å avgjera kva klientar har lukkast i utfordringa ved å lagra ein signert lykel i ein informasjonskapsel. Venlegast slå på informasjonskapslar på dette domenet. Namna på informasjonskapslane Anubis lagrar, kan ymsa utan varsel. Informasjonskapselnamn og -verdiar er ikkje ein del av det offentlege API-et.",
-  "js_context_not_secure": "Du nøyter ikkje ei sikker tilkopling!",
-  "js_context_not_secure_msg": "Prøv å kopla til over HTTPS eller fortel administratoren å oppretta HTTPS. Sjå <a hreflang=\"en\" href=\"https://developer.mozilla.org/en-US/docs/Web/Security/Secure_Contexts#when_is_a_context_considered_secure\">MDN</a> for fleire opplysingar.",
+  "js_web_crypto_error": "Nettlesaren din har ikkje eit fungerande web.crypto-element. Ser du dette med ei sikker tilkopling?",
+  "js_web_workers_error": "Nettlesaren din støttar ikkje nettarbeidarar (Anubis brukar dette for å unngå å fryse nettlesaren din). Har du eit tillegg som JShelter installert?",
+  "js_cookies_error": "Nettlesaren lagrar ikkje informasjonskapslar. Anubis brukar informasjonskapslar for å avgjera kva klientar har lukkast i utfordringa ved å lagra ein signert token i ein informasjonskapsel. Venlegast slå på informasjonskapslar på dette domenet. Namna på informasjonskapslane Anubis lagrar, kan variere utan varsel. Informasjonskapselnamn og -verdiar er ikkje ein del av det offentlege API-et.",
+  "js_context_not_secure": "Du brukar ikkje ei sikker tilkopling!",
+  "js_context_not_secure_msg": "Prøv å kople til over HTTPS eller fortel administratoren å opprette HTTPS. Sjå <a hreflang=\"en\" href=\"https://developer.mozilla.org/en-US/docs/Web/Security/Secure_Contexts#when_is_a_context_considered_secure\">MDN</a> for fleire opplysingar.",
  "js_calculating": "Reknar…",
  "js_missing_feature": "Manglar funksjon",
  "js_challenge_error": "Utfordringsfeil!",
-  "js_challenge_error_msg": "Mislukkast i å tolka sjekkalgoritmen. Du burde lasta inn denne sida på nytt.",
+  "js_challenge_error_msg": "Mislukkast i å tolke sjekkalgoritmen. Du burde laste inn denne sida på nytt.",
  "js_calculating_difficulty": "Reknar…<br/>Vanskenivå:",
  "js_speed": "fart:",
-  "js_verification_longer": "Verifisering tek lenger enn venta. Venlegast ikkje last inn denne sida på nytt.",
-  "js_success": "Vellukka!",
+  "js_verification_longer": "Verifisering tek lengre enn forventa. Venlegast ikkje last inn denne sida på nytt.",
+  "js_success": "Vellykka!",
  "js_done_took": "Ferdig! Tok",
  "js_iterations": "oppattakingar",
  "js_finished_reading": "Eg har slutta å lesa, hald fram →",
  "js_calculation_error": "Rekningsfeil!",
-  "js_calculation_error_msg": "Mislukkast i å rekna utfordring:",
-  "missing_required_forwarded_headers": "Vantande naudsynte «X-Forwarded-*»-overskrifter",
-  "simplified_explanation": "Dette er eit tiltak mot robotar og ondsinna førespurnader som liknar på ein CAPTCHA. Men i staden for å måtte gjera arbeidet sjølv, får netlesaren din ei utrekningsoppgåve som han må løysa for å stadfesta at han er ein gyldig klient. Dette konseptet vert kalla <a href=\"https://en.wikipedia.org/wiki/Proof_of_work\">arbeidsstadfesting</a>. Oppgåva vert rekna ut på nokre få sekund, og du får tilgang til nettstaden. Takk for forståinga di og tolmodet ditt."
+  "js_calculation_error_msg": "Mislukkast i å rekne utfordring:",
+  "missing_required_forwarded_headers": "Manglende nødvendige X-Forwarded-* headers",
+  "simplified_explanation": "Dette er eit tiltak mot robotar og vondsinna førespurnader som liknar på ein CAPTCHA. Men i staden for å måtte gjere arbeidet sjølv, får nettlesaren din ei utrekningsoppgåve som han må løyse for å sikre at han er ein gyldig klient. Dette konseptet blir kalla <a href=\"https://en.wikipedia.org/wiki/Proof_of_work\">Arbeidsbevis</a>. Oppgåva blir rekna ut på nokre få sekund, og du får tilgang til nettstaden. Takk for di forståing og tålmod."
 }
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,16 +1,18 @@
 {
  "name": "@techaro/anubis",
-  "version": "1.23.0-pre1",
+  "version": "1.22.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "@techaro/anubis",
-      "version": "1.23.0-pre1",
+      "version": "1.22.0",
      "license": "ISC",
      "dependencies": {
        "@aws-crypto/sha256-js": "^5.2.0",
-        "preact": "^10.27.2"
+        "@haribala/wasm2js": "^1.1.1",
+        "preact": "^10.27.2",
+        "wasm-feature-detect": "^1.8.0"
      },
      "devDependencies": {
        "cssnano": "^7.1.1",
@@ -503,6 +505,12 @@
        "node": ">=18"
      }
    },
+    "node_modules/@haribala/wasm2js": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@haribala/wasm2js/-/wasm2js-1.1.1.tgz",
+      "integrity": "sha512-PCZxbPNYJ3Nax1EPKb6oz2TSraSbhQyEXL2wZDlardsE7IwP6HHHVJVvDYWDz5p5HcASAvWRi74utGIepagTeA==",
+      "license": "Apache-2.0"
+    },
    "node_modules/@smithy/is-array-buffer": {
      "version": "2.2.0",
      "resolved": "https://registry.npmjs.org/@smithy/is-array-buffer/-/is-array-buffer-2.2.0.tgz",
@@ -2685,6 +2693,12 @@
      "dev": true,
      "license": "MIT"
    },
+    "node_modules/wasm-feature-detect": {
+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/wasm-feature-detect/-/wasm-feature-detect-1.8.0.tgz",
+      "integrity": "sha512-zksaLKM2fVlnB5jQQDqKXXwYHLQUVH9es+5TOOHwGOVJOCeRBCiPjwSg+3tN2AdTCzjgli4jijCH290kXb/zWQ==",
+      "license": "Apache-2.0"
+    },
    "node_modules/wrap-ansi": {
      "version": "7.0.0",
      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@techaro/anubis",
-  "version": "1.23.0-pre1",
+  "version": "1.22.0",
  "description": "",
  "main": "index.js",
  "scripts": {
@@ -8,13 +8,20 @@
    "test:integration": "npm run assets && go test -v ./internal/test",
    "test:integration:podman": "npm run assets && go test -v ./internal/test --playwright-runner=podman",
    "test:integration:docker": "npm run assets && go test -v ./internal/test --playwright-runner=docker",
-    "assets": "go generate ./... && ./web/build.sh && ./xess/build.sh",
+    "generate": "go generate ./...",
+    "assets:js": "./web/build.sh",
+    "assets:css": "./xess/build.sh",
+    "assets:wasm": "bash ./scripts/build_wasm.sh",
+    "assets": "npm run generate && npm run assets:wasm && npm run assets:js && npm run assets:css",
    "build": "npm run assets && go build -o ./var/anubis ./cmd/anubis",
    "dev": "npm run assets && go run ./cmd/anubis --use-remote-address --target http://localhost:3000",
    "container": "npm run assets && go run ./cmd/containerbuild",
    "package": "yeet",
    "lint": "make lint"
  },
+  "imports": {
+    "lib/*": "./web/lib/*"
+  },
  "author": "",
  "license": "ISC",
  "devDependencies": {
@@ -29,6 +36,8 @@
  },
  "dependencies": {
    "@aws-crypto/sha256-js": "^5.2.0",
-    "preact": "^10.27.2"
+    "@haribala/wasm2js": "^1.1.1",
+    "preact": "^10.27.2",
+    "wasm-feature-detect": "^1.8.0"
  }
 }
--- a/rustup-toolchain.toml
+++ b/rustup-toolchain.toml
@@ -0,0 +1,4 @@
+[toolchain]
+channel = "stable"
+components = ["rustfmt", "cargo", "clippy", "rust-analyzer", "rustfmt"]
+targets = ["wasm32-unknown-unknown"]
--- a/scripts/build_wasm.sh
+++ b/scripts/build_wasm.sh
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+mkdir -p ./web/static/wasm/{simd128,baseline}
+
+cargo clean
+
+# With simd128
+RUSTFLAGS='-C target-feature=+simd128' cargo build --release --target wasm32-unknown-unknown
+cp -vf ./target/wasm32-unknown-unknown/release/*.wasm ./web/static/wasm/simd128
+
+cargo clean
+
+# Without simd128
+cargo build --release --target wasm32-unknown-unknown
+cp -vf ./target/wasm32-unknown-unknown/release/*.wasm ./web/static/wasm/baseline
+
+for file in ./web/static/wasm/baseline/*.wasm; do
+  echo $file
+  rm -f ${file%.*}.wasmjs
+  wasm2js $file -all -O4 --strip-debug --rse --rereloop --optimize-for-js --flatten --dce --dfo --fpcast-emu --denan --dealign --remove-imports --remove-unused-names --remove-unused-brs --reorder-functions --reorder-locals --strip-target-features --untee --vacuum -s 4 -ffm -lmu -tnh -iit -n -o ${file%.*}.mjs
+  sed -i '1s$.*$const anubis_update_nonce = (_ignored) => { };$' ${file%.*}.mjs
+done
--- a/test/default-config-macro/compare_bots.py
+++ b/test/default-config-macro/compare_bots.py
@@ -1,82 +0,0 @@
-#!/usr/bin/env python3
-"""
-Script to verify that the 'bots' field in data/botPolicies.yaml
-has the same semantic contents as data/meta/default-config.yaml.
-
-CW: generated by AI
-"""
-
-import yaml
-import sys
-import os
-import subprocess
-import difflib
-
-def load_yaml(file_path):
-    """Load YAML file and return the data."""
-    try:
-        with open(file_path, 'r') as f:
-            return yaml.safe_load(f)
-    except Exception as e:
-        print(f"Error loading {file_path}: {e}")
-        sys.exit(1)
-
-def normalize_yaml(data):
-    """Normalize YAML data by removing comments and standardizing structure."""
-    # For lists, just return as is, since YAML comments are stripped by safe_load
-    return data
-
-def get_repo_root():
-    """Get the root directory of the git repository."""
-    try:
-        result = subprocess.run(['git', 'rev-parse', '--show-toplevel'], capture_output=True, text=True, check=True)
-        return result.stdout.strip()
-    except subprocess.CalledProcessError:
-        print("Error: Not in a git repository")
-        sys.exit(1)
-
-def main():
-    # Get the git repository root
-    repo_root = get_repo_root()
-
-    # Paths relative to the repo root
-    bot_policies_path = os.path.join(repo_root, 'data', 'botPolicies.yaml')
-    default_config_path = os.path.join(repo_root, 'data', 'meta', 'default-config.yaml')
-
-    # Load the files
-    bot_policies = load_yaml(bot_policies_path)
-    default_config = load_yaml(default_config_path)
-
-    # Extract the 'bots' field from botPolicies.yaml
-    if 'bots' not in bot_policies:
-        print("Error: 'bots' field not found in botPolicies.yaml")
-        sys.exit(1)
-    bots_field = bot_policies['bots']
-
-    # The default-config.yaml is a list directly
-    default_bots = default_config
-
-    # Normalize both
-    normalized_bots = normalize_yaml(bots_field)
-    normalized_default = normalize_yaml(default_bots)
-
-    # Compare
-    if normalized_bots == normalized_default:
-        print("SUCCESS: The 'bots' field in botPolicies.yaml matches the contents of default-config.yaml")
-        sys.exit(0)
-    else:
-        print("FAILURE: The 'bots' field in botPolicies.yaml does not match the contents of default-config.yaml")
-        print("\nDiff:")
-        bots_yaml = yaml.dump(normalized_bots, default_flow_style=False)
-        default_yaml = yaml.dump(normalized_default, default_flow_style=False)
-        diff = difflib.unified_diff(
-            bots_yaml.splitlines(keepends=True),
-            default_yaml.splitlines(keepends=True),
-            fromfile='bots field in botPolicies.yaml',
-            tofile='default-config.yaml'
-        )
-        print(''.join(diff))
-        sys.exit(1)
-
-if __name__ == "__main__":
-    main()
--- a/test/default-config-macro/test.sh
+++ b/test/default-config-macro/test.sh
@@ -1,7 +0,0 @@
-#!/usr/bin/env bash
-
-set -euo pipefail
-
-cd "$(dirname "$0")"
-python3 -c 'import yaml'
-python3 ./compare_bots.py
--- a/test/go.mod
+++ b/test/go.mod
@@ -76,6 +76,7 @@ require (
 	github.com/sebest/xff v0.0.0-20210106013422-671bd2870b3a // indirect
 	github.com/shirou/gopsutil/v4 v4.25.6 // indirect
 	github.com/stoewer/go-strcase v1.3.1 // indirect
+	github.com/tetratelabs/wazero v1.9.0 // indirect
 	github.com/yusufpapurcu/wmi v1.2.4 // indirect
 	go.etcd.io/bbolt v1.4.2 // indirect
 	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
--- a/test/go.sum
+++ b/test/go.sum
@@ -211,6 +211,8 @@ github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOf
 github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
 github.com/testcontainers/testcontainers-go v0.38.0 h1:d7uEapLcv2P8AvH8ahLqDMMxda2W9gQN1nRbHS28HBw=
 github.com/testcontainers/testcontainers-go v0.38.0/go.mod h1:C52c9MoHpWO+C4aqmgSU+hxlR5jlEayWtgYrb8Pzz1w=
+github.com/tetratelabs/wazero v1.9.0 h1:IcZ56OuxrtaEz8UYNRHBrUa9bYeX9oVY93KspZZBf/I=
+github.com/tetratelabs/wazero v1.9.0/go.mod h1:TSbcXCfFP0L2FGkRPxHphadXPjo1T6W+CseNNY7EkjM=
 github.com/tklauser/go-sysconf v0.3.15 h1:VE89k0criAymJ/Os65CSn1IXaol+1wrsFHEB8Ol49K4=
 github.com/tklauser/go-sysconf v0.3.15/go.mod h1:Dmjwr6tYFIseJw7a3dRLJfsHAMXZ3nEnL/aZY+0IuI4=
 github.com/tklauser/numcpus v0.10.0 h1:18njr6LDBk1zuna922MgdjQuJFjrdppsZG60sHGfjso=
--- a/test/ssh-ci/Dockerfile
+++ b/test/ssh-ci/Dockerfile
@@ -1,5 +0,0 @@
-ARG ALPINE_VERSION=3.22
-
-FROM alpine:${ALPINE_VERSION}
-RUN apk add -U go nodejs git build-base git npm bash zstd brotli gzip
-LABEL org.opencontainers.image.source="https://github.com/TecharoHQ/anubis"
--- a/test/ssh-ci/docker-bake.hcl
+++ b/test/ssh-ci/docker-bake.hcl
@@ -1,26 +0,0 @@
-variable "ALPINE_VERSION" { default = "3.22" }
-
-group "default" {
-  targets = [
-    "ci-runner",
-  ]
-}
-
-target "ci-runner" {
-  args = {
-    ALPINE_VERSION = "3.22"
-  }
-  context = "."
-  dockerfile = "./Dockerfile"
-  platforms = [
-    "linux/amd64",
-    "linux/arm64",
-    "linux/arm/v7",
-    "linux/ppc64le",
-    "linux/riscv64",
-  ]
-  pull = true
-  tags = [
-    "ghcr.io/techarohq/anubis/ci-runner:latest"
-  ]
-}
--- a/test/ssh-ci/in-container.sh
+++ b/test/ssh-ci/in-container.sh
@@ -5,4 +5,4 @@ set -x

 npm ci
 npm run build
-SKIP_INTEGRATION=1 go test ./...
+SKIP_INTEGRATION=1 go test -v ./...
--- a/test/ssh-ci/rigging.sh
+++ b/test/ssh-ci/rigging.sh
@@ -14,7 +14,7 @@ Hosts["ppc64le"]="ci@ppc64le.techaro.lol"     # GOARCH=ppc64le GOOS=linux
 Hosts["aarch64-4k"]="rocky@192.168.2.52"      # GOARCH=arm64 GOOS=linux 4k page size
 Hosts["aarch64-16k"]="ci@192.168.2.28"        # GOARCH=arm64 GOOS=linux 16k page size

-CIRunnerImage="ghcr.io/techarohq/anubis/ci-runner:latest"
+CIRunnerImage="ghcr.io/techarohq/ci-images/ssh-ci:latest"
 RunID=${GITHUB_RUN_ID:-$(uuidgen)}
 RunFolder="anubis/runs/${RunID}"
 Target="${Hosts["$1"]}"
--- a/wasm/anubis/Cargo.toml
+++ b/wasm/anubis/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "anubis"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+wee_alloc = "0.4"
--- a/wasm/anubis/src/lib.rs
+++ b/wasm/anubis/src/lib.rs
@@ -0,0 +1,72 @@
+use std::sync::{LazyLock, Mutex};
+
+extern crate wee_alloc;
+
+#[global_allocator]
+static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;
+
+#[cfg(target_arch = "wasm32")]
+mod hostimport {
+    use crate::{DATA_BUFFER, DATA_LENGTH};
+
+    #[link(wasm_import_module = "anubis")]
+    unsafe extern "C" {
+        /// The runtime expects this function to be defined. It is called whenever the Anubis check
+        /// worker processes about 1024 hashes. This can be a no-op if you want.
+        fn anubis_update_nonce(nonce: u32);
+    }
+
+    /// Safe wrapper to `anubis_update_nonce`.
+    pub fn update_nonce(nonce: u32) {
+        unsafe {
+            anubis_update_nonce(nonce);
+        }
+    }
+
+    #[unsafe(no_mangle)]
+    pub extern "C" fn data_ptr() -> *const u8 {
+        let challenge = &DATA_BUFFER;
+        challenge.as_ptr()
+    }
+
+    #[unsafe(no_mangle)]
+    pub extern "C" fn set_data_length(len: u32) {
+        let mut data_length = DATA_LENGTH.lock().unwrap();
+        *data_length = len as usize;
+    }
+}
+
+#[cfg(not(target_arch = "wasm32"))]
+mod hostimport {
+    use crate::{DATA_BUFFER, DATA_LENGTH};
+
+    pub fn update_nonce(_nonce: u32) {
+        // This is intentionally blank
+    }
+
+    pub fn data_ptr() -> *const u8 {
+        let challenge = &DATA_BUFFER;
+        challenge.as_ptr()
+    }
+
+    pub fn set_data_length(len: u32) {
+        let mut data_length = DATA_LENGTH.lock().unwrap();
+        *data_length = len as usize;
+    }
+}
+
+/// The data buffer is a bit weird in that it doesn't have an explicit length as it can
+/// and will change depending on the challenge input that was sent by the server.
+/// However, it can only fit 4096 bytes of data (one amd64 machine page). This is
+/// slightly overkill for the purposes of an Anubis check, but it's fine to assume
+/// that the browser can afford this much ram usage.
+///
+/// Callers should fetch the base data pointer, write up to 4096 bytes, and then
+/// `set_data_length` the number of bytes they have written
+///
+/// This is also functionally a write-only buffer, so it doesn't really matter that
+/// the length of this buffer isn't exposed.
+pub static DATA_BUFFER: LazyLock<[u8; 4096]> = LazyLock::new(|| [0; 4096]);
+pub static DATA_LENGTH: LazyLock<Mutex<usize>> = LazyLock::new(|| Mutex::new(0));
+
+pub use hostimport::{data_ptr, set_data_length, update_nonce};
--- a/wasm/pow/hashx/Cargo.toml
+++ b/wasm/pow/hashx/Cargo.toml
@@ -0,0 +1,22 @@
+[package]
+name = "hashx"
+version = "0.1.0"
+edition = "2024"
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+equix = "0.3"
+hashx = "0.4"
+
+anubis = { path = "../../anubis" }
+
+[lints.clippy]
+nursery = { level = "warn", priority = -1 }
+pedantic = { level = "warn", priority = -1 }
+unwrap_used = "warn"
+uninlined_format_args = "allow"
+missing_panics_doc = "allow"
+missing_errors_doc = "allow"
+cognitive_complexity = "allow"
--- a/wasm/pow/hashx/src/lib.rs
+++ b/wasm/pow/hashx/src/lib.rs
@@ -0,0 +1,156 @@
+use anubis::{DATA_BUFFER, DATA_LENGTH, update_nonce};
+use hashx::HashX;
+use std::boxed::Box;
+use std::sync::{LazyLock, Mutex};
+
+/// SHA-256 hashes are 32 bytes (256 bits). These are stored in static buffers due to the
+/// fact that you cannot easily pass data from host space to WebAssembly space.
+pub static RESULT_HASH: LazyLock<Box<Mutex<[u8; 32]>>> =
+    LazyLock::new(|| Box::new(Mutex::new([0; 32])));
+
+pub static VERIFICATION_HASH: LazyLock<Box<Mutex<[u8; 32]>>> =
+    LazyLock::new(|| Box::new(Mutex::new([0; 32])));
+
+/// Core validation function. Compare each bit in the hash by progressively masking bits until
+/// some are found to not be matching.
+///
+/// There are probably more clever ways to do this, likely involving lookup tables or something
+/// really fun like that. However in my testing this lets us get up to 200 kilohashes per second
+/// on my Ryzen 7950x3D, up from about 50 kilohashes per second in JavaScript.
+fn validate(hash: &[u8], difficulty: u32) -> bool {
+    let mut remaining = difficulty;
+    for &byte in hash {
+        // If we're out of bits to check, exit. This is all good.
+        if remaining == 0 {
+            break;
+        }
+
+        // If there are more than 8 bits remaining, the entire byte should be a
+        // zero. This fast-path compares the byte to 0 and if it matches, subtract
+        // 8 bits.
+        if remaining >= 8 {
+            if byte != 0 {
+                return false;
+            }
+            remaining -= 8;
+        } else {
+            // Otherwise mask off individual bits and check against them.
+            let mask = 0xFF << (8 - remaining);
+            if (byte & mask) != 0 {
+                return false;
+            }
+            remaining = 0;
+        }
+    }
+    true
+}
+
+fn anubis_work_inner(
+    difficulty: u32,
+    initial_nonce: u32,
+    iterand: u32,
+) -> Result<u32, hashx::Error> {
+    let mut nonce: u32 = initial_nonce;
+
+    let data = &DATA_BUFFER;
+    let data_len = *DATA_LENGTH.lock().unwrap();
+    let data_slice = &data[..data_len];
+    let mut i = 0;
+
+    let h = HashX::new(data_slice)?;
+
+    loop {
+        i += 1;
+        let hash = h.hash_to_bytes(nonce as u64);
+
+        if validate(&hash, difficulty) {
+            // If the challenge worked, copy the bytes into `RESULT_HASH` so the runtime
+            // can pick it up.
+            let mut challenge = RESULT_HASH.lock().unwrap();
+            challenge.copy_from_slice(&hash);
+            return Ok(nonce);
+        }
+
+        nonce = nonce.wrapping_add(iterand);
+
+        if i == 1024 {
+            update_nonce(nonce);
+            i = 0;
+        }
+    }
+}
+
+/// This function is the main entrypoint for the Anubis proof of work implementation.
+///
+/// This expects `DATA_BUFFER` to be prepopulated with the challenge value as "raw bytes".
+/// The definition of what goes in the data buffer is an exercise for the implementor, but
+/// for SHA-256 we store the hash as "raw bytes". The data buffer is intentionally oversized
+/// so that the challenge value can be expanded in the future.
+///
+/// `difficulty` is the number of leading bits that must match `0` in order for the
+/// challenge to be successfully passed. This will be validated by the server.
+///
+/// `initial_nonce` is the initial value of the nonce (number used once). This nonce will be
+/// appended to the challenge value in order to find a hash matching the specified
+/// difficulty.
+///
+/// `iterand` (noun form of iterate) is the amount that the nonce should be increased by
+/// every iteration of the proof of work loop. This will vary by how many threads are
+/// running the proof-of-work check, and also functions as a thread ID. This prevents
+/// wasting CPU time retrying a hash+nonce pair that likely won't work.
+#[unsafe(no_mangle)]
+pub extern "C" fn anubis_work(difficulty: u32, initial_nonce: u32, iterand: u32) -> u32 {
+    anubis_work_inner(difficulty, initial_nonce, iterand).unwrap()
+}
+
+/// This function is called by the server in order to validate a proof-of-work challenge.
+/// This expects `DATA_BUFFER` to be set to the challenge value and `VERIFICATION_HASH` to
+/// be set to the "raw bytes" of the SHA-256 hash that the client calculated.
+///
+/// If everything is good, it returns true. Otherwise, it returns false.
+///
+/// XXX(Xe): this could probably return an error code for what step fails, but this is fine
+/// for now.
+#[unsafe(no_mangle)]
+pub extern "C" fn anubis_validate(nonce: u32, difficulty: u32) -> bool {
+    let data = &DATA_BUFFER;
+    let data_len = *DATA_LENGTH.lock().unwrap();
+    let data_slice = &data[..data_len];
+
+    let h: HashX = HashX::new(data_slice).unwrap();
+    let computed = h.hash_to_bytes(nonce as u64);
+    let valid = validate(&computed, difficulty);
+    if !valid {
+        return false;
+    }
+
+    let verification = VERIFICATION_HASH.lock().unwrap();
+    computed == *verification
+}
+
+// These functions exist to give pointers and lengths to the runtime around the Anubis
+// checks, this allows JavaScript and Go to safely manipulate the memory layout that Rust
+// has statically allocated at compile time without having to assume how the Rust compiler
+// is going to lay it out.
+
+#[unsafe(no_mangle)]
+pub extern "C" fn result_hash_ptr() -> *const u8 {
+    let challenge = RESULT_HASH.lock().unwrap();
+    challenge.as_ptr()
+}
+
+#[unsafe(no_mangle)]
+pub extern "C" fn result_hash_size() -> usize {
+    RESULT_HASH.lock().unwrap().len()
+}
+
+#[unsafe(no_mangle)]
+pub extern "C" fn verification_hash_ptr() -> *const u8 {
+    let verification = VERIFICATION_HASH.lock().unwrap();
+    verification.as_ptr()
+}
+
+#[unsafe(no_mangle)]
+pub extern "C" fn verification_hash_size() -> usize {
+    VERIFICATION_HASH.lock().unwrap().len()
+}
--- a/wasm/pow/sha256/Cargo.toml
+++ b/wasm/pow/sha256/Cargo.toml
@@ -0,0 +1,21 @@
+[package]
+name = "sha256"
+version = "0.1.0"
+edition = "2024"
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+sha2 = "0.11.0-pre.5"
+
+anubis = { path = "../../anubis" }
+
+[lints.clippy]
+nursery = { level = "warn", priority = -1 }
+pedantic = { level = "warn", priority = -1 }
+unwrap_used = "warn"
+uninlined_format_args = "allow"
+missing_panics_doc = "allow"
+missing_errors_doc = "allow"
+cognitive_complexity = "allow"
--- a/wasm/pow/sha256/run.html
+++ b/wasm/pow/sha256/run.html
@@ -0,0 +1 @@
+<script src="run.js" type="module"></script>
--- a/wasm/pow/sha256/run.js
+++ b/wasm/pow/sha256/run.js
@@ -0,0 +1,105 @@
+// Load and instantiate the .wasm file
+const response = await fetch("sha256.wasm");
+
+const importObject = {
+  anubis: {
+    anubis_update_nonce: (nonce) => {
+      console.log(`Received nonce update: ${nonce}`);
+      // Your logic here
+    }
+  }
+};
+
+const module = await WebAssembly.compileStreaming(response);
+const instance = await WebAssembly.instantiate(module, importObject);
+
+// Get exports
+const {
+  anubis_work,
+  anubis_validate,
+  data_ptr,
+  result_hash_ptr,
+  result_hash_size,
+  verification_hash_ptr,
+  verification_hash_size,
+  set_data_length,
+  memory
+} = instance.exports;
+
+console.log(instance.exports);
+
+function uint8ArrayToHex(arr) {
+  return Array.from(arr)
+    .map((c) => c.toString(16).padStart(2, "0"))
+    .join("");
+}
+
+function hexToUint8Array(hexString) {
+  // Remove whitespace and optional '0x' prefix
+  hexString = hexString.replace(/\s+/g, '').replace(/^0x/, '');
+
+  // Check for valid length
+  if (hexString.length % 2 !== 0) {
+    throw new Error('Invalid hex string length');
+  }
+
+  // Check for valid characters
+  if (!/^[0-9a-fA-F]+$/.test(hexString)) {
+    throw new Error('Invalid hex characters');
+  }
+
+  // Convert to Uint8Array
+  const byteArray = new Uint8Array(hexString.length / 2);
+  for (let i = 0; i < byteArray.length; i++) {
+    const byteValue = parseInt(hexString.substr(i * 2, 2), 16);
+    byteArray[i] = byteValue;
+  }
+
+  return byteArray;
+}
+
+// Write data to buffer
+function writeToBuffer(data) {
+  if (data.length > 1024) throw new Error("Data exceeds buffer size");
+
+  // Get pointer and create view
+  const offset = data_ptr();
+  const buffer = new Uint8Array(memory.buffer, offset, data.length);
+
+  // Copy data
+  buffer.set(data);
+
+  // Set data length
+  set_data_length(data.length);
+}
+
+function readFromChallenge() {
+  const offset = result_hash_ptr();
+  const buffer = new Uint8Array(memory.buffer, offset, result_hash_size());
+
+  return buffer;
+}
+
+// Example usage:
+const data = hexToUint8Array("98ea6e4f216f2fb4b69fff9b3a44842c38686ca685f3f55dc48c5d3fb1107be4");
+writeToBuffer(data);
+
+// Call work function
+const t0 = Date.now();
+const nonce = anubis_work(16, 0, 1);
+const t1 = Date.now();
+
+console.log(`Done! Took ${t1 - t0}ms, ${nonce} iterations`);
+
+const challengeBuffer = readFromChallenge();
+
+{
+  const buffer = new Uint8Array(memory.buffer, verification_hash_ptr(), verification_hash_size());
+  buffer.set(challengeBuffer);
+}
+
+// Validate
+const isValid = anubis_validate(nonce, 10) === 1;
+console.log(isValid);
+
+console.log(uint8ArrayToHex(readFromChallenge()));
--- a/wasm/pow/sha256/src/lib.rs
+++ b/wasm/pow/sha256/src/lib.rs
@@ -0,0 +1,166 @@
+use anubis::{DATA_BUFFER, DATA_LENGTH, update_nonce};
+use sha2::{Digest, Sha256};
+use std::boxed::Box;
+use std::sync::{LazyLock, Mutex};
+
+/// SHA-256 hashes are 32 bytes (256 bits). These are stored in static buffers due to the
+/// fact that you cannot easily pass data from host space to WebAssembly space.
+pub static RESULT_HASH: LazyLock<Box<Mutex<[u8; 32]>>> =
+    LazyLock::new(|| Box::new(Mutex::new([0; 32])));
+
+pub static VERIFICATION_HASH: LazyLock<Box<Mutex<[u8; 32]>>> =
+    LazyLock::new(|| Box::new(Mutex::new([0; 32])));
+
+/// Core validation function. Compare each bit in the hash by progressively masking bits until
+/// some are found to not be matching.
+///
+/// There are probably more clever ways to do this, likely involving lookup tables or something
+/// really fun like that. However in my testing this lets us get up to 200 kilohashes per second
+/// on my Ryzen 7950x3D, up from about 50 kilohashes per second in JavaScript.
+fn validate(hash: &[u8], difficulty: u32) -> bool {
+    let mut remaining = difficulty;
+    for &byte in hash {
+        // If we're out of bits to check, exit. This is all good.
+        if remaining == 0 {
+            break;
+        }
+
+        // If there are more than 8 bits remaining, the entire byte should be a
+        // zero. This fast-path compares the byte to 0 and if it matches, subtract
+        // 8 bits.
+        if remaining >= 8 {
+            if byte != 0 {
+                return false;
+            }
+            remaining -= 8;
+        } else {
+            // Otherwise mask off individual bits and check against them.
+            let mask = 0xFF << (8 - remaining);
+            if (byte & mask) != 0 {
+                return false;
+            }
+            remaining = 0;
+        }
+    }
+    true
+}
+
+/// Computes hash for given nonce.
+///
+/// This differs from the JavaScript implementations by constructing the hash differently. In
+/// JavaScript implementations, the SHA-256 input is the result of appending the nonce as an
+/// integer to the hex-formatted challenge, eg:
+///
+///     sha256(`${challenge}${nonce}`);
+///
+/// This **does work**, however I think that this can be done a bit better by operating on the
+/// challenge bytes _directly_ and treating the nonce as a salt.
+///
+/// The nonce is also randomly encoded in either big or little endian depending on the last
+/// byte of the data buffer in an effort to make it more annoying to automate with GPUs.
+fn compute_hash(nonce: u32) -> [u8; 32] {
+    let data = &DATA_BUFFER;
+    let data_len = *DATA_LENGTH.lock().unwrap();
+    let use_le = data[data_len - 1] >= 128;
+    let data_slice = &data[..data_len];
+
+    let mut hasher = Sha256::new();
+    hasher.update(data_slice);
+    hasher.update(if use_le {
+        nonce.to_le_bytes()
+    } else {
+        nonce.to_be_bytes()
+    });
+    hasher.finalize().into()
+}
+
+/// This function is the main entrypoint for the Anubis proof of work implementation.
+///
+/// This expects `DATA_BUFFER` to be prepopulated with the challenge value as "raw bytes".
+/// The definition of what goes in the data buffer is an exercise for the implementor, but
+/// for SHA-256 we store the hash as "raw bytes". The data buffer is intentionally oversized
+/// so that the challenge value can be expanded in the future.
+///
+/// `difficulty` is the number of leading bits that must match `0` in order for the
+/// challenge to be successfully passed. This will be validated by the server.
+///
+/// `initial_nonce` is the initial value of the nonce (number used once). This nonce will be
+/// appended to the challenge value in order to find a hash matching the specified
+/// difficulty.
+///
+/// `iterand` (noun form of iterate) is the amount that the nonce should be increased by
+/// every iteration of the proof of work loop. This will vary by how many threads are
+/// running the proof-of-work check, and also functions as a thread ID. This prevents
+/// wasting CPU time retrying a hash+nonce pair that likely won't work.
+#[unsafe(no_mangle)]
+pub extern "C" fn anubis_work(difficulty: u32, initial_nonce: u32, iterand: u32) -> u32 {
+    let mut nonce = initial_nonce;
+    let mut i = 0;
+
+    loop {
+        i += 1;
+        let hash = compute_hash(nonce);
+
+        if validate(&hash, difficulty) {
+            // If the challenge worked, copy the bytes into `RESULT_HASH` so the runtime
+            // can pick it up.
+            let mut challenge = RESULT_HASH.lock().unwrap();
+            challenge.copy_from_slice(&hash);
+            return nonce;
+        }
+
+        nonce = nonce.wrapping_add(iterand);
+
+        if i == 1024 {
+            update_nonce(nonce);
+            i = 0;
+        }
+    }
+}
+
+/// This function is called by the server in order to validate a proof-of-work challenge.
+/// This expects `DATA_BUFFER` to be set to the challenge value and `VERIFICATION_HASH` to
+/// be set to the "raw bytes" of the SHA-256 hash that the client calculated.
+///
+/// If everything is good, it returns true. Otherwise, it returns false.
+///
+/// XXX(Xe): this could probably return an error code for what step fails, but this is fine
+/// for now.
+#[unsafe(no_mangle)]
+pub extern "C" fn anubis_validate(nonce: u32, difficulty: u32) -> bool {
+    let computed = compute_hash(nonce);
+    let valid = validate(&computed, difficulty);
+    if !valid {
+        return false;
+    }
+
+    let verification = VERIFICATION_HASH.lock().unwrap();
+    computed == *verification
+}
+
+// These functions exist to give pointers and lengths to the runtime around the Anubis
+// checks, this allows JavaScript and Go to safely manipulate the memory layout that Rust
+// has statically allocated at compile time without having to assume how the Rust compiler
+// is going to lay it out.
+
+#[unsafe(no_mangle)]
+pub extern "C" fn result_hash_ptr() -> *const u8 {
+    let challenge = RESULT_HASH.lock().unwrap();
+    challenge.as_ptr()
+}
+
+#[unsafe(no_mangle)]
+pub extern "C" fn result_hash_size() -> usize {
+    RESULT_HASH.lock().unwrap().len()
+}
+
+#[unsafe(no_mangle)]
+pub extern "C" fn verification_hash_ptr() -> *const u8 {
+    let verification = VERIFICATION_HASH.lock().unwrap();
+    verification.as_ptr()
+}
+
+#[unsafe(no_mangle)]
+pub extern "C" fn verification_hash_size() -> usize {
+    VERIFICATION_HASH.lock().unwrap().len()
+}
--- a/wasm/wasm.go
+++ b/wasm/wasm.go
@@ -0,0 +1,316 @@
+package wasm
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"math"
+	"os"
+	"runtime"
+	"strconv"
+	"sync"
+	"time"
+
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promauto"
+	"github.com/tetratelabs/wazero"
+	"github.com/tetratelabs/wazero/api"
+)
+
+func UpdateNonce(uint32) {}
+
+var (
+	validationTime = promauto.NewHistogramVec(prometheus.HistogramOpts{
+		Name:    "anubis_wasm_validation_time",
+		Help:    "The time taken for the validation function to run per checker (nanoseconds)",
+		Buckets: prometheus.ExponentialBucketsRange(1, math.Pow(2, 31), 32),
+	}, []string{"fname"})
+
+	validationCount = promauto.NewCounterVec(prometheus.CounterOpts{
+		Name: "anubis_wasm_validation",
+		Help: "The number of times the validation logic has been run and its success rate",
+	}, []string{"fname", "success"})
+)
+
+type Runner struct {
+	r     wazero.Runtime
+	code  wazero.CompiledModule
+	fname string
+	lock  sync.Mutex
+}
+
+func NewRunner(ctx context.Context, fname string, fin io.ReadCloser) (*Runner, error) {
+	data, err := io.ReadAll(fin)
+	if err != nil {
+		return nil, fmt.Errorf("wasm: can't read from fin: %w", err)
+	}
+
+	var cfg wazero.RuntimeConfig
+
+	switch runtime.GOARCH {
+	case "amd64":
+		cfg = wazero.NewRuntimeConfigCompiler()
+	default:
+		cfg = wazero.NewRuntimeConfigInterpreter()
+	}
+
+	cfg = cfg.WithMemoryLimitPages(512)
+
+	r := wazero.NewRuntimeWithConfig(ctx, cfg)
+
+	_, err = r.NewHostModuleBuilder("anubis").
+		NewFunctionBuilder().
+		WithFunc(func(context.Context, uint32) {}).
+		Export("anubis_update_nonce").
+		Instantiate(ctx)
+	if err != nil {
+		return nil, fmt.Errorf("wasm: can't export anubis_update_nonce: %w", err)
+	}
+
+	code, err := r.CompileModule(ctx, data)
+	if err != nil {
+		return nil, fmt.Errorf("wasm: can't compile module: %w", err)
+	}
+
+	result := &Runner{
+		r:     r,
+		code:  code,
+		fname: fname,
+	}
+
+	return result, nil
+}
+
+func (r *Runner) checkExports(module api.Module) error {
+	funcs := []string{
+		"anubis_work",
+		"anubis_validate",
+		"data_ptr",
+		"set_data_length",
+		"result_hash_ptr",
+		"result_hash_size",
+		"verification_hash_ptr",
+		"verification_hash_size",
+	}
+
+	var errs []error
+
+	for _, fun := range funcs {
+		if module.ExportedFunction(fun) == nil {
+			errs = append(errs, fmt.Errorf("function %s is not defined", fun))
+		}
+	}
+
+	if len(errs) != 0 {
+		return errors.Join(errs...)
+	}
+
+	return nil
+}
+
+func (r *Runner) anubisWork(ctx context.Context, module api.Module, difficulty, initialNonce, iterand uint32) (uint32, error) {
+	results, err := module.ExportedFunction("anubis_work").Call(ctx, uint64(difficulty), uint64(initialNonce), uint64(iterand))
+	if err != nil {
+		return 0, err
+	}
+
+	return uint32(results[0]), nil
+}
+
+func (r *Runner) anubisValidate(ctx context.Context, module api.Module, nonce, difficulty uint32) (bool, error) {
+	results, err := module.ExportedFunction("anubis_validate").Call(ctx, uint64(nonce), uint64(difficulty))
+	if err != nil {
+		return false, err
+	}
+
+	// Rust booleans are 1 if true
+	return results[0] == 1, nil
+}
+
+func (r *Runner) dataPtr(ctx context.Context, module api.Module) (uint32, error) {
+	results, err := module.ExportedFunction("data_ptr").Call(ctx)
+	if err != nil {
+		return 0, err
+	}
+
+	return uint32(results[0]), nil
+}
+
+func (r *Runner) setDataLength(ctx context.Context, module api.Module, length uint32) error {
+	_, err := module.ExportedFunction("set_data_length").Call(ctx, uint64(length))
+	return err
+}
+
+func (r *Runner) resultHashPtr(ctx context.Context, module api.Module) (uint32, error) {
+	results, err := module.ExportedFunction("result_hash_ptr").Call(ctx)
+	if err != nil {
+		return 0, err
+	}
+
+	return uint32(results[0]), nil
+}
+
+func (r *Runner) resultHashSize(ctx context.Context, module api.Module) (uint32, error) {
+	results, err := module.ExportedFunction("result_hash_size").Call(ctx)
+	if err != nil {
+		return 0, err
+	}
+
+	return uint32(results[0]), nil
+}
+
+func (r *Runner) verificationHashPtr(ctx context.Context, module api.Module) (uint32, error) {
+	results, err := module.ExportedFunction("verification_hash_ptr").Call(ctx)
+	if err != nil {
+		return 0, err
+	}
+
+	return uint32(results[0]), nil
+}
+
+func (r *Runner) verificationHashSize(ctx context.Context, module api.Module) (uint32, error) {
+	results, err := module.ExportedFunction("verification_hash_size").Call(ctx)
+	if err != nil {
+		return 0, err
+	}
+
+	return uint32(results[0]), nil
+}
+
+func (r *Runner) writeData(ctx context.Context, module api.Module, data []byte) error {
+	if len(data) > 4096 {
+		return os.ErrInvalid
+	}
+
+	length := uint32(len(data))
+
+	dataPtr, err := r.dataPtr(ctx, module)
+	if err != nil {
+		return fmt.Errorf("can't read data pointer: %w", err)
+	}
+
+	if !module.Memory().Write(dataPtr, data) {
+		return fmt.Errorf("[unexpected] can't write memory, is data out of range??")
+	}
+
+	if err := r.setDataLength(ctx, module, length); err != nil {
+		return fmt.Errorf("can't set data length: %w", err)
+	}
+
+	return nil
+}
+
+func (r *Runner) readResult(ctx context.Context, module api.Module) ([]byte, error) {
+	length, err := r.resultHashSize(ctx, module)
+	if err != nil {
+		return nil, fmt.Errorf("can't get result hash size: %w", err)
+	}
+
+	ptr, err := r.resultHashPtr(ctx, module)
+	if err != nil {
+		return nil, fmt.Errorf("can't get result hash pointer: %w", err)
+	}
+
+	buf, ok := module.Memory().Read(ptr, length)
+	if !ok {
+		return nil, fmt.Errorf("[unexpected] can't read from memory, is something out of range??")
+	}
+
+	return buf, nil
+}
+
+func (r *Runner) run(ctx context.Context, data []byte, difficulty, initialNonce, iterand uint32) (uint32, []byte, api.Module, error) {
+	mod, err := r.r.InstantiateModule(ctx, r.code, wazero.NewModuleConfig().WithName(r.fname))
+	if err != nil {
+		return 0, nil, nil, fmt.Errorf("can't instantiate module: %w", err)
+	}
+
+	if err := r.checkExports(mod); err != nil {
+		return 0, nil, nil, err
+	}
+
+	if err := r.writeData(ctx, mod, data); err != nil {
+		return 0, nil, nil, err
+	}
+
+	nonce, err := r.anubisWork(ctx, mod, difficulty, initialNonce, iterand)
+	if err != nil {
+		return 0, nil, nil, fmt.Errorf("can't run work function: %w", err)
+	}
+
+	hash, err := r.readResult(ctx, mod)
+	if err != nil {
+		return 0, nil, nil, fmt.Errorf("can't read result: %w", err)
+	}
+
+	return nonce, hash, mod, nil
+}
+
+func (r *Runner) Run(ctx context.Context, data []byte, difficulty, initialNonce, iterand uint32) (uint32, []byte, error) {
+	nonce, hash, _, err := r.run(ctx, data, difficulty, initialNonce, iterand)
+	if err != nil {
+		return 0, nil, fmt.Errorf("can't run %s: %w", r.fname, err)
+	}
+
+	return nonce, hash, nil
+}
+
+func (r *Runner) verify(ctx context.Context, data, verify []byte, nonce, difficulty uint32) (bool, api.Module, error) {
+	mod, err := r.r.InstantiateModule(ctx, r.code, wazero.NewModuleConfig().WithName(r.fname))
+	if err != nil {
+		return false, nil, fmt.Errorf("can't instantiate module: %w", err)
+	}
+
+	if err := r.checkExports(mod); err != nil {
+		return false, nil, err
+	}
+
+	if err := r.writeData(ctx, mod, data); err != nil {
+		return false, nil, err
+	}
+
+	if err := r.writeVerification(ctx, mod, verify); err != nil {
+		return false, nil, err
+	}
+
+	ok, err := r.anubisValidate(ctx, mod, nonce, difficulty)
+	if err != nil {
+		return false, nil, fmt.Errorf("can't validate hash %x from challenge %x, nonce %d and difficulty %d: %w", verify, data, nonce, difficulty, err)
+	}
+
+	return ok, mod, nil
+}
+
+func (r *Runner) Verify(ctx context.Context, data, verify []byte, nonce, difficulty uint32) (bool, error) {
+	r.lock.Lock()
+	defer r.lock.Unlock()
+
+	t0 := time.Now()
+	ok, _, err := r.verify(ctx, data, verify, nonce, difficulty)
+	validationTime.WithLabelValues(r.fname).Observe(float64(time.Since(t0)))
+	validationCount.WithLabelValues(r.fname, strconv.FormatBool(ok))
+	return ok, err
+}
+
+func (r *Runner) writeVerification(ctx context.Context, module api.Module, data []byte) error {
+	length, err := r.verificationHashSize(ctx, module)
+	if err != nil {
+		return fmt.Errorf("can't get verification hash size: %v", err)
+	}
+
+	if length != uint32(len(data)) {
+		return fmt.Errorf("data is too big, want %d bytes, got: %d", length, len(data))
+	}
+
+	ptr, err := r.verificationHashPtr(ctx, module)
+	if err != nil {
+		return fmt.Errorf("can't get verification hash pointer: %v", err)
+	}
+
+	if !module.Memory().Write(ptr, data) {
+		return fmt.Errorf("[unexpected] can't write memory, is data out of range??")
+	}
+
+	return nil
+}
--- a/wasm/wasm_test.go
+++ b/wasm/wasm_test.go
@@ -0,0 +1,181 @@
+package wasm
+
+import (
+	"context"
+	"crypto/sha256"
+	"fmt"
+	"io/fs"
+	"path/filepath"
+	"testing"
+	"time"
+
+	"github.com/TecharoHQ/anubis/web"
+)
+
+func abiTest(t testing.TB, kind, fname string, difficulty uint32) {
+	fin, err := web.Static.Open("static/wasm/" + kind + "/" + fname)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer fin.Close()
+	ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
+	t.Cleanup(cancel)
+
+	runner, err := NewRunner(ctx, fname, fin)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	h := sha256.New()
+	fmt.Fprint(h, t.Name())
+	data := h.Sum(nil)
+
+	nonce, hash, mod, err := runner.run(ctx, data, difficulty, 0, 1)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if err := runner.writeVerification(ctx, mod, hash); err != nil {
+		t.Fatalf("can't write verification: %v", err)
+	}
+
+	ok, err := runner.anubisValidate(ctx, mod, nonce, difficulty)
+	if err != nil {
+		t.Fatalf("can't run validation: %v", err)
+	}
+
+	if !ok {
+		t.Error("validation failed")
+	}
+
+	t.Logf("used %d pages of wasm memory (%d bytes)", mod.Memory().Size()/63356, mod.Memory().Size())
+}
+
+func TestAlgos(t *testing.T) {
+	fnames, err := fs.ReadDir(web.Static, "static/wasm/baseline")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	for _, kind := range []string{"baseline", "simd128"} {
+		for _, fname := range fnames {
+			if filepath.Ext(fname.Name()) != ".wasm" {
+				continue
+			}
+			t.Run(kind+"/"+fname.Name(), func(t *testing.T) {
+				abiTest(t, kind, fname.Name(), 16)
+			})
+		}
+	}
+}
+
+func bench(b *testing.B, kind, fname string, difficulties []uint32) {
+	b.Helper()
+
+	fin, err := web.Static.Open("static/wasm/" + kind + "/" + fname)
+	if err != nil {
+		b.Fatal(err)
+	}
+	defer fin.Close()
+	ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
+	b.Cleanup(cancel)
+
+	runner, err := NewRunner(ctx, fname, fin)
+	if err != nil {
+		b.Fatal(err)
+	}
+
+	h := sha256.New()
+	fmt.Fprint(h, "This is an example value that exists only to test the system.")
+	data := h.Sum(nil)
+
+	_, _, mod, err := runner.run(ctx, data, 0, 0, 1)
+	if err != nil {
+		b.Fatal(err)
+	}
+
+	for _, difficulty := range difficulties {
+		b.Run(fmt.Sprintf("difficulty/%d", difficulty), func(b *testing.B) {
+			for b.Loop() {
+				difficulty := difficulty
+				_, err := runner.anubisWork(ctx, mod, difficulty, 0, 1)
+				if err != nil {
+					b.Fatalf("can't do test work run: %v", err)
+				}
+			}
+		})
+	}
+}
+
+func BenchmarkSHA256(b *testing.B) {
+	for _, kind := range []string{"baseline", "simd128"} {
+		b.Run(kind, func(b *testing.B) {
+			bench(b, kind, "sha256.wasm", []uint32{4, 6, 8, 10, 12, 14, 16})
+		})
+	}
+}
+
+func BenchmarkHashX(b *testing.B) {
+	for _, kind := range []string{"baseline", "simd128"} {
+		b.Run(kind, func(b *testing.B) {
+			bench(b, kind, "hashx.wasm", []uint32{4, 6, 8, 10, 12, 14, 16})
+		})
+	}
+}
+
+func BenchmarkValidate(b *testing.B) {
+	fnames, err := fs.ReadDir(web.Static, "static/wasm/simd128")
+	if err != nil {
+		b.Fatal(err)
+	}
+
+	h := sha256.New()
+	fmt.Fprint(h, "This is an example value that exists only to test the system.")
+	data := h.Sum(nil)
+
+	for _, fname := range fnames {
+		fname := fname.Name()
+
+		difficulty := uint32(1)
+
+		switch fname {
+		case "sha256.wasm":
+			difficulty = 16
+		}
+
+		if filepath.Ext(fname) != ".wasm" {
+			continue
+		}
+
+		b.Run(fname, func(b *testing.B) {
+			fin, err := web.Static.Open("static/wasm/simd128/" + fname)
+			if err != nil {
+				b.Fatal(err)
+			}
+			defer fin.Close()
+			ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
+			b.Cleanup(cancel)
+
+			runner, err := NewRunner(ctx, fname, fin)
+			if err != nil {
+				b.Fatal(err)
+			}
+
+			nonce, hash, mod, err := runner.run(ctx, data, difficulty, 0, 1)
+			if err != nil {
+				b.Fatal(err)
+			}
+
+			if err := runner.writeVerification(ctx, mod, hash); err != nil {
+				b.Fatalf("can't write verification: %v", err)
+			}
+
+			for b.Loop() {
+				_, err := runner.anubisValidate(ctx, mod, nonce, difficulty)
+				if err != nil {
+					b.Fatalf("can't run validation: %v", err)
+				}
+			}
+		})
+	}
+}
--- a/web/build.sh
+++ b/web/build.sh
@@ -31,6 +31,9 @@ THE SOFTWARE.
 Includes code from https://github.com/aws/aws-sdk-js-crypto-helpers which is
 used under the terms of the Apache 2 license.

+Includes code written in Rust and transpiled from WebAssembly to JavaScript
+which is used under the terms of the licenses that comprise those crates.
+
@licend  The above is the entire license notice
 for the JavaScript code in this page.
 */'
@@ -49,7 +52,7 @@ for file in js/**/*.ts js/**/*.mjs; do

  mkdir -p "$(dirname "$out")"

-  esbuild "$file" --sourcemap --bundle --minify --outfile="$out" --banner:js="$LICENSE"
+  esbuild "$file" --sourcemap --minify --bundle --outfile="$out" --banner:js="$LICENSE"
  gzip -f -k -n "$out"
  zstd -f -k --ultra -22 "$out"
  brotli -fZk "$out"
--- a/web/index.go
+++ b/web/index.go
@@ -22,8 +22,8 @@ func BaseWithChallengeAndOGTags(title string, body templ.Component, impressum *c
 	}, ogTags, localizer)
 }

-func ErrorPage(msg, mail, code string, localizer *localization.SimpleLocalizer) templ.Component {
-	return errorPage(msg, mail, code, localizer)
+func ErrorPage(msg, mail string, localizer *localization.SimpleLocalizer) templ.Component {
+	return errorPage(msg, mail, localizer)
 }

 func Bench(localizer *localization.SimpleLocalizer) templ.Component {
--- a/web/index.templ
+++ b/web/index.templ
@@ -88,13 +88,10 @@ templ base(title string, body templ.Component, impressum *config.Impressum, chal
 	</html>
 }

-templ errorPage(message, mail, code string, localizer *localization.SimpleLocalizer) {
+templ errorPage(message, mail string, localizer *localization.SimpleLocalizer) {
 	<div class="centered-div">
 		<img id="image" alt="Sad Anubis" style="width:100%;max-width:256px;" src={ anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/reject.webp?cacheBuster=" + anubis.Version }/>
 		<p>{ message }.</p>
-		if code != "" {
-			<code><pre>{ code }</pre></code>
-		}
 		if mail != "" {
 			<p>
 				<a href="/">{ localizer.T("go_home") }</a> { localizer.T("contact_webmaster") }
--- a/web/index_templ.go
+++ b/web/index_templ.go
@@ -283,7 +283,7 @@ func base(title string, body templ.Component, impressum *config.Impressum, chall
 	})
 }

-func errorPage(message, mail, code string, localizer *localization.SimpleLocalizer) templ.Component {
+func errorPage(message, mail string, localizer *localization.SimpleLocalizer) templ.Component {
 	return templruntime.GeneratedTemplate(func(templ_7745c5c3_Input templruntime.GeneratedComponentInput) (templ_7745c5c3_Err error) {
 		templ_7745c5c3_W, ctx := templ_7745c5c3_Input.Writer, templ_7745c5c3_Input.Context
 		if templ_7745c5c3_CtxErr := ctx.Err(); templ_7745c5c3_CtxErr != nil {
@@ -334,73 +334,72 @@ func errorPage(message, mail, code string, localizer *localization.SimpleLocaliz
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		if code != "" {
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 26, "<code><pre>")
+		if mail != "" {
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 26, "<p><a href=\"/\">")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			var templ_7745c5c3_Var19 string
-			templ_7745c5c3_Var19, templ_7745c5c3_Err = templ.JoinStringErrs(code)
+			templ_7745c5c3_Var19, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("go_home"))
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 96, Col: 20}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 97, Col: 40}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var19))
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 27, "</pre></code> ")
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-		}
-		if mail != "" {
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 28, "<p><a href=\"/\">")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 27, "</a> ")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			var templ_7745c5c3_Var20 string
-			templ_7745c5c3_Var20, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("go_home"))
+			templ_7745c5c3_Var20, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("contact_webmaster"))
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 100, Col: 40}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 97, Col: 81}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var20))
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 29, "</a> ")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 28, " <a href=\"")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			var templ_7745c5c3_Var21 string
-			templ_7745c5c3_Var21, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("contact_webmaster"))
+			var templ_7745c5c3_Var21 templ.SafeURL
+			templ_7745c5c3_Var21, templ_7745c5c3_Err = templ.JoinURLErrs("mailto:" + templ.SafeURL(mail))
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 100, Col: 81}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 98, Col: 45}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var21))
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 30, " <a href=\"")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 29, "\">")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			var templ_7745c5c3_Var22 templ.SafeURL
-			templ_7745c5c3_Var22, templ_7745c5c3_Err = templ.JoinURLErrs("mailto:" + templ.SafeURL(mail))
+			var templ_7745c5c3_Var22 string
+			templ_7745c5c3_Var22, templ_7745c5c3_Err = templ.JoinStringErrs(mail)
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 101, Col: 45}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 99, Col: 11}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var22))
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 31, "\">")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 30, "</a></p>")
+			if templ_7745c5c3_Err != nil {
+				return templ_7745c5c3_Err
+			}
+		} else {
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 31, "<p><a href=\"/\">")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
 			var templ_7745c5c3_Var23 string
-			templ_7745c5c3_Var23, templ_7745c5c3_Err = templ.JoinStringErrs(mail)
+			templ_7745c5c3_Var23, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("go_home"))
 			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 102, Col: 11}
+				return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 103, Col: 42}
 			}
 			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var23))
 			if templ_7745c5c3_Err != nil {
@@ -410,26 +409,8 @@ func errorPage(message, mail, code string, localizer *localization.SimpleLocaliz
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-		} else {
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 33, "<p><a href=\"/\">")
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			var templ_7745c5c3_Var24 string
-			templ_7745c5c3_Var24, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("go_home"))
-			if templ_7745c5c3_Err != nil {
-				return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 106, Col: 42}
-			}
-			_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var24))
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 34, "</a></p>")
-			if templ_7745c5c3_Err != nil {
-				return templ_7745c5c3_Err
-			}
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 35, "</div>")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 33, "</div>")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
@@ -453,39 +434,39 @@ func StaticHappy(localizer *localization.SimpleLocalizer) templ.Component {
 			}()
 		}
 		ctx = templ.InitializeContext(ctx)
-		templ_7745c5c3_Var25 := templ.GetChildren(ctx)
-		if templ_7745c5c3_Var25 == nil {
-			templ_7745c5c3_Var25 = templ.NopComponent
+		templ_7745c5c3_Var24 := templ.GetChildren(ctx)
+		if templ_7745c5c3_Var24 == nil {
+			templ_7745c5c3_Var24 = templ.NopComponent
 		}
 		ctx = templ.ClearChildren(ctx)
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 36, "<div class=\"centered-div\"><img style=\"display:none;\" style=\"width:100%;max-width:256px;\" src=\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 34, "<div class=\"centered-div\"><img style=\"display:none;\" style=\"width:100%;max-width:256px;\" src=\"")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		var templ_7745c5c3_Var25 string
+		templ_7745c5c3_Var25, templ_7745c5c3_Err = templ.JoinStringErrs("/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=" +
+			anubis.Version)
+		if templ_7745c5c3_Err != nil {
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 114, Col: 18}
+		}
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var25))
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 35, "\"><p>")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var26 string
-		templ_7745c5c3_Var26, templ_7745c5c3_Err = templ.JoinStringErrs("/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=" +
-			anubis.Version)
+		templ_7745c5c3_Var26, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("static_check_endpoint"))
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 117, Col: 18}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 116, Col: 43}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var26))
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 37, "\"><p>")
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		var templ_7745c5c3_Var27 string
-		templ_7745c5c3_Var27, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("static_check_endpoint"))
-		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 119, Col: 43}
-		}
-		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var27))
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 38, "</p></div>")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 36, "</p></div>")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
@@ -509,181 +490,181 @@ func bench(localizer *localization.SimpleLocalizer) templ.Component {
 			}()
 		}
 		ctx = templ.InitializeContext(ctx)
-		templ_7745c5c3_Var28 := templ.GetChildren(ctx)
-		if templ_7745c5c3_Var28 == nil {
-			templ_7745c5c3_Var28 = templ.NopComponent
+		templ_7745c5c3_Var27 := templ.GetChildren(ctx)
+		if templ_7745c5c3_Var27 == nil {
+			templ_7745c5c3_Var27 = templ.NopComponent
 		}
 		ctx = templ.ClearChildren(ctx)
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 39, "<div style=\"height:20rem;display:flex\"><table style=\"margin-top:1rem;display:grid;grid-template:auto 1fr/auto auto;gap:0 0.5rem\"><thead style=\"border-bottom:1px solid black;padding:0.25rem 0;display:grid;grid-template:1fr/subgrid;grid-column:1/-1\"><tr id=\"table-header\" style=\"display:contents\"><th style=\"width:4.5rem\">")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 37, "<div style=\"height:20rem;display:flex\"><table style=\"margin-top:1rem;display:grid;grid-template:auto 1fr/auto auto;gap:0 0.5rem\"><thead style=\"border-bottom:1px solid black;padding:0.25rem 0;display:grid;grid-template:1fr/subgrid;grid-column:1/-1\"><tr id=\"table-header\" style=\"display:contents\"><th style=\"width:4.5rem\">")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		var templ_7745c5c3_Var28 string
+		templ_7745c5c3_Var28, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("time"))
+		if templ_7745c5c3_Err != nil {
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 127, Col: 51}
+		}
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var28))
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 38, "</th><th style=\"width:4rem\">")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var29 string
-		templ_7745c5c3_Var29, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("time"))
+		templ_7745c5c3_Var29, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("iters"))
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 130, Col: 51}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 128, Col: 50}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var29))
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 39, "</th></tr><tr id=\"table-header-compare\" style=\"display:none\"><th style=\"width:4.5rem\">")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		var templ_7745c5c3_Var30 string
+		templ_7745c5c3_Var30, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("time_a"))
+		if templ_7745c5c3_Err != nil {
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 131, Col: 53}
+		}
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var30))
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
 		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 40, "</th><th style=\"width:4rem\">")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		var templ_7745c5c3_Var30 string
-		templ_7745c5c3_Var30, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("iters"))
-		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 131, Col: 50}
-		}
-		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var30))
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 41, "</th></tr><tr id=\"table-header-compare\" style=\"display:none\"><th style=\"width:4.5rem\">")
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
 		var templ_7745c5c3_Var31 string
-		templ_7745c5c3_Var31, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("time_a"))
+		templ_7745c5c3_Var31, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("iters_a"))
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 134, Col: 53}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 132, Col: 52}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var31))
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 41, "</th><th style=\"width:4.5rem\">")
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
+		var templ_7745c5c3_Var32 string
+		templ_7745c5c3_Var32, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("time_b"))
+		if templ_7745c5c3_Err != nil {
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 133, Col: 53}
+		}
+		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var32))
+		if templ_7745c5c3_Err != nil {
+			return templ_7745c5c3_Err
+		}
 		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 42, "</th><th style=\"width:4rem\">")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		var templ_7745c5c3_Var32 string
-		templ_7745c5c3_Var32, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("iters_a"))
-		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 135, Col: 52}
-		}
-		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var32))
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 43, "</th><th style=\"width:4.5rem\">")
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
 		var templ_7745c5c3_Var33 string
-		templ_7745c5c3_Var33, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("time_b"))
+		templ_7745c5c3_Var33, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("iters_b"))
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 136, Col: 53}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 134, Col: 52}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var33))
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 44, "</th><th style=\"width:4rem\">")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 43, "</th></tr></thead> <tbody id=\"results\" style=\"padding-top:0.25rem;display:grid;grid-template-columns:subgrid;grid-auto-rows:min-content;grid-column:1/-1;row-gap:0.25rem;overflow-y:auto;font-variant-numeric:tabular-nums\"></tbody></table><div class=\"centered-div\"><img id=\"image\" style=\"width:100%;max-width:256px;\" src=\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var34 string
-		templ_7745c5c3_Var34, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("iters_b"))
+		templ_7745c5c3_Var34, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 137, Col: 52}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 143, Col: 166}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var34))
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 45, "</th></tr></thead> <tbody id=\"results\" style=\"padding-top:0.25rem;display:grid;grid-template-columns:subgrid;grid-auto-rows:min-content;grid-column:1/-1;row-gap:0.25rem;overflow-y:auto;font-variant-numeric:tabular-nums\"></tbody></table><div class=\"centered-div\"><img id=\"image\" style=\"width:100%;max-width:256px;\" src=\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 44, "\"><p id=\"status\" style=\"max-width:256px\">")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var35 string
-		templ_7745c5c3_Var35, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/img/pensive.webp?cacheBuster=" + anubis.Version)
+		templ_7745c5c3_Var35, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("loading"))
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 146, Col: 166}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 144, Col: 66}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var35))
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 46, "\"><p id=\"status\" style=\"max-width:256px\">")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 45, "</p><script async type=\"module\" src=\"")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var36 string
-		templ_7745c5c3_Var36, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("loading"))
+		templ_7745c5c3_Var36, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/js/bench.mjs?cacheBuster=" + anubis.Version)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 147, Col: 66}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 145, Col: 138}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var36))
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 47, "</p><script async type=\"module\" src=\"")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 46, "\"></script><div id=\"sparkline\"></div><noscript><p>")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var37 string
-		templ_7745c5c3_Var37, templ_7745c5c3_Err = templ.JoinStringErrs(anubis.BasePrefix + "/.within.website/x/cmd/anubis/static/js/bench.mjs?cacheBuster=" + anubis.Version)
+		templ_7745c5c3_Var37, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("benchmark_requires_js"))
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 148, Col: 138}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 148, Col: 45}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var37))
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 48, "\"></script><div id=\"sparkline\"></div><noscript><p>")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 47, "</p></noscript></div></div><form id=\"controls\" style=\"position:fixed;top:0.5rem;right:0.5rem\"><div style=\"display:flex;justify-content:end\"><label for=\"difficulty-input\" style=\"margin-right:0.5rem\">")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var38 string
-		templ_7745c5c3_Var38, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("benchmark_requires_js"))
+		templ_7745c5c3_Var38, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("difficulty"))
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 151, Col: 45}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 154, Col: 88}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var38))
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 49, "</p></noscript></div></div><form id=\"controls\" style=\"position:fixed;top:0.5rem;right:0.5rem\"><div style=\"display:flex;justify-content:end\"><label for=\"difficulty-input\" style=\"margin-right:0.5rem\">")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 48, "</label> <input id=\"difficulty-input\" type=\"number\" name=\"difficulty\" style=\"width:3rem\"></div><div style=\"margin-top:0.25rem;display:flex;justify-content:end\"><label for=\"algorithm-select\" style=\"margin-right:0.5rem\">")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var39 string
-		templ_7745c5c3_Var39, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("difficulty"))
+		templ_7745c5c3_Var39, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("algorithm"))
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 157, Col: 88}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 158, Col: 87}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var39))
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 50, "</label> <input id=\"difficulty-input\" type=\"number\" name=\"difficulty\" style=\"width:3rem\"></div><div style=\"margin-top:0.25rem;display:flex;justify-content:end\"><label for=\"algorithm-select\" style=\"margin-right:0.5rem\">")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 49, "</label> <select id=\"algorithm-select\" name=\"algorithm\"></select></div><div style=\"margin-top:0.25rem;display:flex;justify-content:end\"><label for=\"compare-select\" style=\"margin-right:0.5rem\">")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var40 string
-		templ_7745c5c3_Var40, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("algorithm"))
+		templ_7745c5c3_Var40, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("compare"))
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 161, Col: 87}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 162, Col: 83}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var40))
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 51, "</label> <select id=\"algorithm-select\" name=\"algorithm\"></select></div><div style=\"margin-top:0.25rem;display:flex;justify-content:end\"><label for=\"compare-select\" style=\"margin-right:0.5rem\">")
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		var templ_7745c5c3_Var41 string
-		templ_7745c5c3_Var41, templ_7745c5c3_Err = templ.JoinStringErrs(localizer.T("compare"))
-		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `index.templ`, Line: 165, Col: 83}
-		}
-		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var41))
-		if templ_7745c5c3_Err != nil {
-			return templ_7745c5c3_Err
-		}
-		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 52, "</label> <select id=\"compare-select\" name=\"compare\"><option value=\"NONE\">-</option></select></div></form>")
+		templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 50, "</label> <select id=\"compare-select\" name=\"compare\"><option value=\"NONE\">-</option></select></div></form>")
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
--- a/web/js/algorithms/fast.ts
+++ b/web/js/algorithms/fast.ts
@@ -18,12 +18,7 @@ export default function process(
 ): Promise<string> {
  console.debug("fast algo");

-  // Choose worker based on secure context.
-  // Use the WebCrypto worker if the page is a secure context; otherwise fall back to pure‑JS.
-  let workerMethod: "webcrypto" | "purejs" = "purejs";
-  if (window.isSecureContext) {
-    workerMethod = "webcrypto";
-  }
+  let workerMethod = window.crypto !== undefined ? "webcrypto" : "purejs";

  if (navigator.userAgent.includes("Firefox") || navigator.userAgent.includes("Goanna")) {
    console.log("Firefox detected, using pure-JS fallback");
@@ -87,4 +82,4 @@ export default function process(
      workers.push(worker);
    }
  });
-}
+}
--- a/web/js/algorithms/index.ts
+++ b/web/js/algorithms/index.ts
@@ -1,6 +1,10 @@
 import fast from "./fast";
+import wasm from "./wasm";

 export default {
  fast: fast,
  slow: fast, // XXX(Xe): slow is deprecated, but keep this around in case anything goes bad
+
+  hashx: wasm,
+  sha256: wasm,
 }
--- a/web/js/algorithms/wasm/hashx.ts
+++ b/web/js/algorithms/wasm/hashx.ts
@@ -0,0 +1,23 @@
+import {
+  memory,
+  data_ptr,
+  set_data_length,
+  anubis_work,
+  anubis_validate,
+  result_hash_ptr,
+  result_hash_size,
+  verification_hash_ptr,
+  verification_hash_size,
+} from "../../../static/wasm/baseline/hashx.mjs";
+
+export default {
+  memory,
+  data_ptr,
+  set_data_length,
+  anubis_work,
+  anubis_validate,
+  result_hash_ptr,
+  result_hash_size,
+  verification_hash_ptr,
+  verification_hash_size
+};
--- a/web/js/algorithms/wasm/index.ts
+++ b/web/js/algorithms/wasm/index.ts
@@ -0,0 +1,118 @@
+import { u } from "../../../lib/xeact";
+import { simd } from "wasm-feature-detect";
+// import { compile } from '@haribala/wasm2js';
+
+type ProgressCallback = (nonce: number | string) => void;
+
+interface ProcessOptions {
+  basePrefix: string;
+  version: string;
+  algorithm: string;
+}
+
+const getHardwareConcurrency = () =>
+  navigator.hardwareConcurrency !== undefined ? navigator.hardwareConcurrency : 1;
+
+// https://stackoverflow.com/questions/47879864/how-can-i-check-if-a-browser-supports-webassembly
+const isWASMSupported = (() => {
+  try {
+    if (typeof WebAssembly === "object"
+      && typeof WebAssembly.instantiate === "function") {
+      const module = new WebAssembly.Module(Uint8Array.of(0x0, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00));
+      if (module instanceof WebAssembly.Module)
+        return new WebAssembly.Instance(module) instanceof WebAssembly.Instance;
+    }
+  } catch (e) {
+    return false;
+  }
+  return false;
+})();
+
+export default function process(
+  options: ProcessOptions,
+  data: string,
+  difficulty: number = 5,
+  signal: AbortSignal | null = null,
+  progressCallback?: ProgressCallback,
+  threads: number = Math.trunc(Math.max(getHardwareConcurrency() / 2, 1)),
+): Promise<string> {
+  const { basePrefix, version, algorithm } = options;
+
+  let worker = "wasm";
+
+  if (!isWASMSupported) {
+    worker = "wasm2js";
+  }
+
+  return new Promise(async (resolve, reject) => {
+    let wasmFeatures = "baseline";
+
+    if (await simd()) {
+      wasmFeatures = "simd128";
+    }
+
+    let module = undefined;
+
+    if (isWASMSupported) {
+      module = await fetch(u(`${basePrefix}/.within.website/x/cmd/anubis/static/wasm/${wasmFeatures}/${algorithm}.wasm?cacheBuster=${version}`))
+        .then(x => WebAssembly.compileStreaming(x));
+    }
+
+    const webWorkerURL = `${basePrefix}/.within.website/x/cmd/anubis/static/js/worker/${worker}.mjs?cacheBuster=${version}`;
+
+    const workers: Worker[] = [];
+    let settled = false;
+
+    const onAbort = () => {
+      console.log("PoW aborted");
+      cleanup();
+      reject(new DOMException("Aborted", "AbortError"));
+    };
+
+    const cleanup = () => {
+      if (settled) {
+        return;
+      }
+      settled = true;
+      workers.forEach((w) => w.terminate());
+      if (signal != null) {
+        signal.removeEventListener("abort", onAbort);
+      }
+    };
+
+    if (signal != null) {
+      if (signal.aborted) {
+        return onAbort();
+      }
+      signal.addEventListener("abort", onAbort, { once: true });
+    }
+
+    for (let i = 0; i < threads; i++) {
+      let worker = new Worker(webWorkerURL);
+
+      worker.onmessage = (event) => {
+        if (typeof event.data === "number") {
+          progressCallback?.(event.data);
+        } else {
+          cleanup();
+          resolve(event.data);
+        }
+      }
+
+      worker.onerror = (event) => {
+        cleanup();
+        reject(event);
+      }
+
+      worker.postMessage({
+        data,
+        difficulty,
+        nonce: i,
+        threads,
+        algorithm,
+        module,
+      });
+    }
+  });
+};
+
--- a/web/js/algorithms/wasm/sha256.ts
+++ b/web/js/algorithms/wasm/sha256.ts
@@ -0,0 +1,23 @@
+import {
+  memory,
+  data_ptr,
+  set_data_length,
+  anubis_work,
+  anubis_validate,
+  result_hash_ptr,
+  result_hash_size,
+  verification_hash_ptr,
+  verification_hash_size,
+} from "../../../static/wasm/baseline/sha256.mjs";
+
+export default {
+  memory,
+  data_ptr,
+  set_data_length,
+  anubis_work,
+  anubis_validate,
+  result_hash_ptr,
+  result_hash_size,
+  verification_hash_ptr,
+  verification_hash_size
+};
--- a/web/js/main.ts
+++ b/web/js/main.ts
@@ -171,7 +171,7 @@ const t = (key) => translations[`js_${key}`] || translations[key] || key;
  try {
    const t0 = Date.now();
    const { hash, nonce } = await process(
-      { basePrefix, version: anubisVersion },
+      { basePrefix, version: anubisVersion, algorithm: rules.algorithm },
      challenge.randomData,
      rules.difficulty,
      null,
--- a/web/js/worker/wasm.ts
+++ b/web/js/worker/wasm.ts
@@ -0,0 +1,105 @@
+export interface Args {
+  data: string;
+  difficulty: number;
+  nonce: number;
+  threads: number;
+  module: BufferSource;
+}
+
+interface AnubisExports {
+  anubis_work: (difficulty: number, initialNonce: number, threads: number) => number;
+  data_ptr: () => number;
+  result_hash_ptr: () => number;
+  result_hash_size: () => number;
+  set_data_length: (len: number) => void;
+  memory: WebAssembly.Memory;
+}
+
+addEventListener("message", async (event: MessageEvent<Args>) => {
+  const { data, difficulty, threads, module } = event.data;
+  let { nonce } = event.data;
+
+  const importObject = {
+    anubis: {
+      anubis_update_nonce: (nonce: number) => postMessage(nonce),
+    }
+  };
+
+  if (nonce !== 0) {
+    importObject.anubis.anubis_update_nonce = (_) => { };
+  }
+
+  const obj = await WebAssembly.instantiate(module, importObject);
+
+  const {
+    anubis_work,
+    data_ptr,
+    result_hash_ptr,
+    result_hash_size,
+    set_data_length,
+    memory
+  } = (obj as unknown as any).exports as unknown as AnubisExports;
+  function uint8ArrayToHex(arr: Uint8Array) {
+    return Array.from(arr)
+      .map((c) => c.toString(16).padStart(2, "0"))
+      .join("");
+  }
+
+  function hexToUint8Array(hexString: string): Uint8Array {
+    // Remove whitespace and optional '0x' prefix
+    hexString = hexString.replace(/\s+/g, '').replace(/^0x/, '');
+
+    // Check for valid length
+    if (hexString.length % 2 !== 0) {
+      throw new Error('Invalid hex string length');
+    }
+
+    // Check for valid characters
+    if (!/^[0-9a-fA-F]+$/.test(hexString)) {
+      throw new Error('Invalid hex characters');
+    }
+
+    // Convert to Uint8Array
+    const byteArray = new Uint8Array(hexString.length / 2);
+    for (let i = 0; i < byteArray.length; i++) {
+      const byteValue = parseInt(hexString.substr(i * 2, 2), 16);
+      byteArray[i] = byteValue;
+    }
+
+    return byteArray;
+  }
+
+  // Write data to buffer
+  function writeToBuffer(data: Uint8Array) {
+    if (data.length > 1024) throw new Error("Data exceeds buffer size");
+
+    // Get pointer and create view
+    const offset = data_ptr();
+    const buffer = new Uint8Array(memory.buffer, offset, data.length);
+
+    // Copy data
+    buffer.set(data);
+
+    // Set data length
+    set_data_length(data.length);
+  }
+
+  function readFromChallenge() {
+    const offset = result_hash_ptr();
+    const buffer = new Uint8Array(memory.buffer, offset, result_hash_size());
+
+    return buffer;
+  }
+
+  writeToBuffer(hexToUint8Array(data));
+
+  nonce = anubis_work(difficulty, nonce, threads);
+  const challenge = readFromChallenge();
+  const result = uint8ArrayToHex(challenge);
+
+  postMessage({
+    hash: result,
+    difficulty,
+    nonce,
+  });
+});
--- a/web/js/worker/wasm2js.ts
+++ b/web/js/worker/wasm2js.ts
@@ -0,0 +1,106 @@
+import hashx from "../algorithms/wasm/hashx";
+import sha256 from "../algorithms/wasm/sha256";
+
+export interface Args {
+  data: string;
+  difficulty: number;
+  nonce: number;
+  threads: number;
+  algorithm: string;
+}
+
+interface AnubisExports {
+  anubis_work: (difficulty: number, initialNonce: number, threads: number) => number;
+  data_ptr: () => number;
+  result_hash_ptr: () => number;
+  result_hash_size: () => number;
+  set_data_length: (len: number) => void;
+  memory: WebAssembly.Memory;
+}
+
+const algorithms: Record<string, AnubisExports> = {
+  "hashx": hashx as AnubisExports,
+  "sha256": sha256 as AnubisExports,
+};
+
+addEventListener("message", async (event: MessageEvent<Args>) => {
+  const { data, difficulty, threads, algorithm } = event.data;
+  let { nonce } = event.data;
+
+  const obj = algorithms[algorithm];
+  if (obj == undefined) {
+    throw new Error(`unknown algorithm ${algorithm}, file a bug please`);
+  }
+
+  const {
+    anubis_work,
+    data_ptr,
+    result_hash_ptr,
+    result_hash_size,
+    set_data_length,
+    memory
+  } = obj;
+  function uint8ArrayToHex(arr: Uint8Array) {
+    return Array.from(arr)
+      .map((c) => c.toString(16).padStart(2, "0"))
+      .join("");
+  }
+
+  function hexToUint8Array(hexString: string): Uint8Array {
+    // Remove whitespace and optional '0x' prefix
+    hexString = hexString.replace(/\s+/g, '').replace(/^0x/, '');
+
+    // Check for valid length
+    if (hexString.length % 2 !== 0) {
+      throw new Error('Invalid hex string length');
+    }
+
+    // Check for valid characters
+    if (!/^[0-9a-fA-F]+$/.test(hexString)) {
+      throw new Error('Invalid hex characters');
+    }
+
+    // Convert to Uint8Array
+    const byteArray = new Uint8Array(hexString.length / 2);
+    for (let i = 0; i < byteArray.length; i++) {
+      const byteValue = parseInt(hexString.substr(i * 2, 2), 16);
+      byteArray[i] = byteValue;
+    }
+
+    return byteArray;
+  }
+
+  // Write data to buffer
+  function writeToBuffer(data: Uint8Array) {
+    if (data.length > 1024) throw new Error("Data exceeds buffer size");
+
+    // Get pointer and create view
+    const offset = data_ptr();
+    const buffer = new Uint8Array(memory.buffer, offset, data.length);
+
+    // Copy data
+    buffer.set(data);
+
+    // Set data length
+    set_data_length(data.length);
+  }
+
+  function readFromChallenge() {
+    const offset = result_hash_ptr();
+    const buffer = new Uint8Array(memory.buffer, offset, result_hash_size());
+
+    return buffer;
+  }
+
+  writeToBuffer(hexToUint8Array(data));
+
+  nonce = anubis_work(difficulty, nonce, threads);
+  const challenge = readFromChallenge();
+  const result = uint8ArrayToHex(challenge);
+
+  postMessage({
+    hash: result,
+    difficulty,
+    nonce,
+  });
+});
--- a/lib/challenge/preact/js/xeact.js
+++ b/lib/challenge/preact/js/xeact.js
--- a/web/static/wasm/.gitignore
+++ b/web/static/wasm/.gitignore
@@ -0,0 +1,2 @@
+*
+!.gitignore
--- a/xess/xess.go
+++ b/xess/xess.go
@@ -16,8 +16,7 @@ var (
 	//go:embed *.css static
 	Static embed.FS

-	BasePrefix = "/.within.website/x/xess/"
-	URL        = "/.within.website/x/xess/xess.css"
+	URL = "/.within.website/x/xess/xess.css"
 )

 func init() {
Author	SHA1	Message	Date
Xe Iaso	8cc2c4d07c	ci: fix smoke tests Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-30 21:17:36 +00:00
Xe Iaso	158a3b8d77	docs: update CHANGELOG with binaryen dependency Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-30 21:04:43 +00:00
Xe Iaso	1530eab1a4	docs: update CHANGELOG Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-30 21:02:59 +00:00
Xe Iaso	accffa6d83	chore(wasm): spelling fixes Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-30 20:57:59 +00:00
Xe Iaso	c04bd486e1	fix(wasm): support loading webassembly again Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-30 20:57:49 +00:00
Xe Iaso	0699f331d2	docs: add wasm documentation Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-30 20:57:10 +00:00
Xe Iaso	7f1a7197f3	fix(wasm): use interpreter on aarch64 for now Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-30 14:39:56 +00:00
Xe Iaso	2ad7be2847	ci: use binaryen 108 Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-30 14:33:02 +00:00
Xe Iaso	45c9cb6842	Update metadata check-spelling run (pull_request) for Xe/wasm3 Signed-off-by: check-spelling-bot <check-spelling-bot@users.noreply.github.com> on-behalf-of: @check-spelling <check-spelling-bot@check-spelling.dev>	2025-09-30 14:30:59 +00:00
Xe Iaso	a29025c382	ci: fix invocations of setup-binaryen Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-30 14:28:39 +00:00
Xe Iaso	bba000e87e	chore: clean up places I forced things in testing Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-30 14:27:19 +00:00
Xe Iaso	643b4719d8	feat(wasm): support "pure JS" mode Closes #1159 This uses the binaryen tool wasm2js to compile the Anubis WASM blobs to JavaScript. This produces biblically large (520Ki) outputs when you inline both hashx and sha256 solvers, but this is a tradeoff that I'm willing to accept. The performance is good enough in my testing with JIT enabled. I fear that this may end up being terrible with JIT disabled. I have no idea if this will work on big endian or not. Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-30 14:21:29 +00:00
Xe Iaso	705da2fa3c	fix: disable broken wasm interpreter flow for now Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-28 15:01:42 +00:00
Xe Iaso	bd5613c699	feat(web/wasm): start work on wasm2js, found bugs in the code, stopping to go to bed Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-28 04:25:26 +00:00
Xe Iaso	a0df3d4428	chore: cleanups Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-28 04:03:39 +00:00
Xe Iaso	097c9e9586	feat(web/wasm): use simd128 if available Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-28 04:03:30 +00:00
Xe Iaso	cf931cc0a5	fix(lib): detect failures on challenge method initialization Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-28 04:02:49 +00:00
Xe Iaso	8b60b4309b	chore(wasm): argon2id -> hashx Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-28 03:39:19 +00:00
Xe Iaso	41bfbf7900	test(ssh-ci): use TecharoHQ/ci-images SSH runner image Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-28 03:09:45 +00:00
Xe Iaso	1c5ce190b4	ci: test ssh ci for the wasm stack Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-28 02:50:43 +00:00
Xe Iaso	bed126e641	ci(packages): fix builds Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-28 02:48:00 +00:00
Xe Iaso	9959cb0d06	ci: fix rust wasm32 target Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-28 02:45:17 +00:00
Xe Iaso	f150e4b466	ci: fix rust dependencies Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-28 02:40:54 +00:00
Xe Iaso	8999303eef	feat(lib/challenge/wasm): server side validation logic Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-28 02:35:42 +00:00
Xe Iaso	a63cbc7ced	feat(web/js): add wasm client side runner Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-28 02:21:11 +00:00
Xe Iaso	03a6c07c73	chore: add rust-toolchain.toml Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-27 18:33:05 +00:00
Xe Iaso	908f85db91	feat: add wasm rigging Signed-off-by: Xe Iaso <me@xeiaso.net>	2025-09-27 17:50:28 +00:00
				`@@ -0,0 +1 @@`
				`<script src="run.js" type="module"></script>`