Initial commit: Nicotine-Less Docker container

Lightweight Docker container for Nicotine+ with noVNC web interface and Firefox ESR browser.

Features:
- noVNC web interface with dynamic resize support
- Firefox ESR for testing ports and browsing
- TigerVNC with AcceptSetDesktopSize enabled
- Supervisor for process management
- Configurable user/group permissions

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.gitea/workflows/mirror-alpine.yml

@@ -0,0 +1,23 @@
+name: Mirror Alpine Image
+
+on:
+  schedule:
+    - cron: '0 3 * * 0'  # Weekly on Sunday at 3 AM
+  workflow_dispatch:
+
+jobs:
+  mirror:
+    runs-on: linux-amd64
+    steps:
+      - name: Pull Alpine from GitHub Container Registry
+        run: |
+          /usr/bin/docker pull ghcr.io/alpinelinux/alpine:latest
+
+      - name: Login to Gitea Container Registry
+        run: |
+          echo "${{ secrets.REGISTRY_PASSWORD }}" | /usr/bin/docker login git.nicola.sh -u "${{ secrets.REGISTRY_USERNAME }}" --password-stdin
+
+      - name: Tag and push to Gitea registry
+        run: |
+          /usr/bin/docker tag ghcr.io/alpinelinux/alpine:latest git.nicola.sh/public/alpine:latest
+          /usr/bin/docker push git.nicola.sh/public/alpine:latest