Just set it up for the mirrors

.forgejo/workflows/hasher.yml

@@ -0,0 +1,32 @@
+name: Hasher
+on: [push]
+
+jobs:
+  generate-metadata:
+    runs-on: docker
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Build Manifest
+        run: |
+          echo '{"packages": [' > packages.json
+          DIRS=$(find . -maxdepth 1 -type d -not -path '*/.*' -not -path '.')
+          FIRST=true
+          for DIR in $DIRS; do
+            PKG=$(basename "$DIR")
+            if [ -f "$DIR/$PKG.c" ]; then
+              sha256sum "$DIR/$PKG.c" | cut -d ' ' -f 1 > "$DIR/$PKG.hash"
+              if [ "$FIRST" = false ]; then echo "," >> packages.json; fi
+              echo "{\"name\": \"$PKG\", \"version\": \"1.0.0\"}" >> packages.json
+              FIRST=false
+            fi
+          done
+          echo ']}' >> packages.json
+
+      - name: Deploy Changes
+        run: |
+          git config --local user.email "hasher@forgejo.internal"
+          git config --local user.name "Hasher Bot"
+          git add .
+          git commit -m "hasher: auto-update" || exit 0
+          git push

package.json

@@ -0,0 +1,3 @@
+{
+    "packages": []
+}