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/build.yml

@@ -0,0 +1,133 @@
+name: Build and Push Docker Image
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+  schedule:
+    - cron: '0 * * * *'  # Every hour
+
+jobs:
+  check-version:
+    runs-on: linux-amd64
+    outputs:
+      should_build: ${{ steps.compare.outputs.should_build }}
+      latest_version: ${{ steps.get_version.outputs.version }}
+    steps:
+      - name: Get latest Nicotine+ version from PyPI
+        id: get_version
+        run: |
+          VERSION=$(curl -s https://pypi.org/pypi/nicotine-plus/json | jq -r '.info.version')
+          echo "version=$VERSION" >> $GITHUB_OUTPUT
+          echo "Latest Nicotine+ version: $VERSION"
+
+      - name: Get current built version
+        id: current_version
+        run: |
+          CURRENT=$(curl -s https://git.nicola.sh/api/v1/repos/public/nicotine-less/releases/latest 2>/dev/null | jq -r '.tag_name // "none"')
+          echo "current=$CURRENT" >> $GITHUB_OUTPUT
+          echo "Current built version: $CURRENT"
+
+      - name: Compare versions
+        id: compare
+        run: |
+          if [ "${{ steps.get_version.outputs.version }}" != "${{ steps.current_version.outputs.current }}" ]; then
+            echo "should_build=true" >> $GITHUB_OUTPUT
+            echo "New version detected, will build"
+          else
+            echo "should_build=false" >> $GITHUB_OUTPUT
+            echo "Already up to date"
+          fi
+
+  build:
+    needs: check-version
+    if: needs.check-version.outputs.should_build == 'true' || github.event_name == 'push' || github.event_name == 'workflow_dispatch'
+    strategy:
+      matrix:
+        include:
+          - platform: linux/amd64
+            runner: linux-amd64
+            arch: amd64
+          - platform: linux/arm64
+            runner: linux-arm64
+            arch: arm64
+    runs-on: ${{ matrix.runner }}
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to Gitea Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: git.nicola.sh
+          username: ${{ secrets.REGISTRY_USERNAME }}
+          password: ${{ secrets.REGISTRY_PASSWORD }}
+
+      - name: Build and push by digest
+        id: build
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          platforms: ${{ matrix.platform }}
+          outputs: type=image,name=git.nicola.sh/public/nicotine-less,push-by-digest=true,name-canonical=true,push=true
+          cache-from: type=registry,ref=git.nicola.sh/public/nicotine-less:buildcache-${{ matrix.platform }}
+          cache-to: type=registry,ref=git.nicola.sh/public/nicotine-less:buildcache-${{ matrix.platform }},mode=max
+
+      - name: Export digest
+        run: |
+          mkdir -p /tmp/digests
+          digest="${{ steps.build.outputs.digest }}"
+          touch "/tmp/digests/${digest#sha256:}"
+
+      - name: Upload digest
+        uses: actions/upload-artifact@v4
+        with:
+          name: digests-${{ matrix.platform }}
+          path: /tmp/digests/*
+          if-no-files-found: error
+          retention-days: 1
+
+  merge:
+    needs: build
+    runs-on: linux-amd64
+    steps:
+      - name: Download digests
+        uses: actions/download-artifact@v4
+        with:
+          path: /tmp/digests
+          pattern: digests-*
+          merge-multiple: true
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to Gitea Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: git.nicola.sh
+          username: ${{ secrets.REGISTRY_USERNAME }}
+          password: ${{ secrets.REGISTRY_PASSWORD }}
+
+      - name: Create manifest list and push
+        working-directory: /tmp/digests
+        run: |
+          docker buildx imagetools create \
+            -t git.nicola.sh/public/nicotine-less:latest \
+            -t git.nicola.sh/public/nicotine-less:${{ needs.check-version.outputs.latest_version }} \
+            $(printf 'git.nicola.sh/public/nicotine-less@sha256:%s ' *)
+
+      - name: Create release
+        if: needs.check-version.outputs.should_build == 'true'
+        run: |
+          curl -X POST "https://git.nicola.sh/api/v1/repos/public/nicotine-less/releases" \
+            -H "Authorization: token ${{ secrets.TOKEN }}" \
+            -H "Content-Type: application/json" \
+            -d "{
+              \"tag_name\": \"${{ needs.check-version.outputs.latest_version }}\",
+              \"name\": \"Nicotine+ ${{ needs.check-version.outputs.latest_version }}\",
+              \"body\": \"Automated build with Nicotine+ version ${{ needs.check-version.outputs.latest_version }}\"
+            }"