Add Dockerfile and GitHub Actions workflow for building Docker image

.forgejo/workflows/build.yaml

@@ -0,0 +1,25 @@
+name: Build Docker image
+
+on:
+  push:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          registry: code.edgarpierre.fr
+          username: ${{ vars.DOCKER_PUSH_USERNAME }}
+          password: ${{ secrets.DOCKER_PUSH_PASSWORD }}
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      -
+        name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          push: true
+          tags: code.edgarpierre.fr/${{ github.repository }}:${{ github.ref_name }}

Dockerfile

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+FROM code.edgarpierre.fr/actions/uv-act:main
+
+USER root
+RUN cd /tmp && \
+    curl -LO https://mirror.ctan.org/systems/texlive/tlnet/install-tl-unx.tar.gz && \
+    zcat < install-tl-unx.tar.gz | tar xvf - && \
+    cd install-tl-2* && \
+    perl ./install-tl --no-interaction
+
+ENV PATH="/usr/local/texlive/2025/bin/x86_64-linux:$PATH"
+
+USER uv