diff --git a/.forgejo/workflows/e2e-check.yml b/.forgejo/workflows/e2e-check.yml
new file mode 100644
index 0000000..d3cb791
--- /dev/null
+++ b/.forgejo/workflows/e2e-check.yml
@@ -0,0 +1,39 @@
+name: E2E check
+# Branche jetable ci/e2e-check : determine si le workspace du job est aligne cote hote
+# (les bind-mounts des conteneurs freres sont resolus par le demon de l'hote). Le verdict
+# est ecrit dans un volume Docker nomme `e2e_diag` pour relecture sur le runner. A supprimer.
+on:
+  push:
+    branches: ['ci/e2e-check']
+
+jobs:
+  check:
+    runs-on: docker
+    steps:
+      - uses: actions/checkout@v4
+      - name: Verdict d'alignement -> volume e2e_diag
+        run: |
+          set -e
+          curl -fsSL https://download.docker.com/linux/static/stable/x86_64/docker-27.3.1.tgz -o /tmp/d.tgz
+          tar -xzf /tmp/d.tgz -C /usr/local/bin --strip-components=1 docker/docker
+          {
+            echo "date=$(date -u +%FT%TZ)"
+            echo "GITHUB_WORKSPACE=$GITHUB_WORKSPACE"
+            echo "PWD=$(pwd)"
+            echo "DOCKER_HOST=${DOCKER_HOST:-<vide>}"
+            ls -la /var/run/docker.sock 2>&1 | sed 's/^/socket: /'
+            echo "docker_info=$(docker info --format '{{.ServerVersion}}' 2>&1)"
+            echo "--- mountinfo (workspace) ---"
+            grep -iE 'work' /proc/self/mountinfo || echo '(aucune ligne work)'
+            echo "--- test marqueur ---"
+            echo "ALIGN_TOKEN_42" > "$GITHUB_WORKSPACE/__align_marker"
+            if docker run --rm -v "$GITHUB_WORKSPACE:/x" alpine sh -c 'cat /x/__align_marker 2>/dev/null'; then
+              echo "VERDICT=PATH_ALIGNED"
+            else
+              echo "VERDICT=PATH_NOT_ALIGNED"
+            fi
+          } > /tmp/diag.txt 2>&1
+          cat /tmp/diag.txt
+          docker volume create e2e_diag >/dev/null 2>&1 || true
+          docker run --rm -i -v e2e_diag:/out alpine sh -c 'cat > /out/result.txt' < /tmp/diag.txt
+          echo "(verdict ecrit dans le volume e2e_diag)"