Move static to resources. Embed them at build time

resources/banner.txt

@@ -0,0 +1,6 @@
+ _   _             _     _
+| \ | |           (_)   | |
+|  \| | __ ___   ___  __| |_ __ ___  _ __ ___   ___
+| . ` |/ _` \ \ / / |/ _` | '__/ _ \| '_ ` _ \ / _ \
+| |\  | (_| |\ V /| | (_| | | | (_) | | | | | |  __/
+\_| \_/\__,_| \_/ |_|\__,_|_|  \___/|_| |_| |_|\___|

resources/external.go

@@ -0,0 +1,28 @@
+// +build !embed
+
+package resources
+
+import (
+	"io/ioutil"
+	"net/http"
+	"sync"
+
+	"github.com/deluan/navidrome/log"
+)
+
+var once sync.Once
+
+func Asset(filePath string) ([]byte, error) {
+	f, err := AssetFile().Open(filePath)
+	if err != nil {
+		return nil, err
+	}
+	return ioutil.ReadAll(f)
+}
+
+func AssetFile() http.FileSystem {
+	once.Do(func() {
+		log.Warn("Using external resources from 'resources' folder")
+	})
+	return http.Dir("resources")
+}