try out buildah, maybe it'll work out better

.forgejo/workflows/build-jekyll.yml

@@ -18,16 +18,9 @@ jobs:
   build_and_push_container:
     runs-on: docker
     container:
-      image: ubuntu-latest
+      image: git.hswro.org/fleg/hswro_org_build:latest
     steps:
+      - uses: actions/download-artifact@v3
       - uses: actions/checkout@v3
-      - 
+      - run: find
-        name: Login to Docker Hub
+      - run: cd generated-site && buildah build --file ../docker/serve.Dockerfile -t hswro-org:latest
-        uses: docker/login-action@v3
-        with:
-          registry: git.hswro.org
-          username: ${{ github.actor }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
-      - 
-        name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3

docker/build.Dockerfile

@@ -3,7 +3,7 @@ FROM ubuntu:22.04
 RUN apt-get update && apt-get install -y --no-install-recommends \
     ruby-full build-essential zlib1g-dev \
     build-essential \
-    git nodejs git podman \
+    git nodejs git buildah \
     && rm -rf /var/lib/apt/lists/* \
  && gem install --no-document jekyll -v 4.4.1 \
  && gem install --no-document jekyll-environment-variables \