diff --git a/.forgejo/workflows/ci.yml b/.forgejo/workflows/ci.yml
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+# Forgejo Actions CI — runs on push, executed by the in-cluster runner inside
+# the ci-builder job container (docker CLI + buildx + git). Fully sovereign:
+# no external actions (manual git over forgejo-http), builds via the in-pod
+# DinD ($DOCKER_HOST), pushes to Forgejo's registry, bumps the manifest tag
+# (commit marked [skip ci]) so Argo CD redeploys.
+on:
+  push:
+    branches: [main]
+jobs:
+  build-and-deploy:
+    runs-on: docker
+    env:
+      DOCKER_HOST: tcp://localhost:2375     # in-pod DinD (job shares pod netns)
+      REGISTRY: forgejo-http:3000
+      OWNER: gitea_admin
+      REPO: demo-app
+    steps:
+      - name: Checkout (manual — sovereign, no github.com)
+        env: { REG_PASS: "${{ secrets.REGISTRY_PASS }}" }
+        run: |
+          set -eu
+          git clone --depth 1 "http://${OWNER}:${REG_PASS}@${REGISTRY}/${OWNER}/${REPO}.git" src
+          cd src && git log -1 --oneline
+      - name: Build & push image
+        env: { REG_PASS: "${{ secrets.REGISTRY_PASS }}" }
+        run: |
+          set -eu
+          TAG="$(echo "${GITHUB_SHA}" | cut -c1-12)"
+          IMAGE="${REGISTRY}/${OWNER}/${REPO}:${TAG}"
+          echo "${REG_PASS}" | docker login "${REGISTRY}" -u "${OWNER}" --password-stdin
+          docker build -t "${IMAGE}" ./src
+          docker push "${IMAGE}"
+          echo "TAG=${TAG}" >> "${GITHUB_ENV}"
+      - name: Bump manifest tag -> Argo redeploys
+        env: { REG_PASS: "${{ secrets.REGISTRY_PASS }}" }
+        run: |
+          set -eu
+          cd src
+          sed -i "s#\(image: ${REGISTRY}/${OWNER}/${REPO}:\)[^[:space:]]*#\1${TAG}#" manifests/app.yaml
+          grep 'image:' manifests/app.yaml
+          if git diff --quiet; then echo "manifest already at ${TAG}"; exit 0; fi
+          git config user.email "ci@sovereign.local"
+          git config user.name "Sovereign CI"
+          git commit -am "ci: deploy ${TAG} [skip ci]"
+          git push "http://${OWNER}:${REG_PASS}@${REGISTRY}/${OWNER}/${REPO}.git" HEAD:main