diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index b4f0e67..82b2212 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -10,22 +10,28 @@ jobs:
   build-and-anchors:
     runs-on: ubuntu-latest
     container:
-      image: node:20-bookworm-slim
+      # Image avec node + git déjà présents -> pas d'APT
+      image: mcr.microsoft.com/devcontainers/javascript-node:20-bookworm
+      # On force root pour pouvoir écrire /etc/resolv.conf (sinon user "node")
       options: >-
-        --dns=192.168.1.1
-        --dns=109.0.66.10
-        --dns-option=timeout:2
-        --dns-option=attempts:2
-        --dns-option=use-vc
+        --user root
+        --add-host gitea.archicratie.trans-hands.synology.me:192.168.1.20
 
     steps:
-      - name: Install base tools (git + certs)
+      - name: Force DNS inside job container (DS220+ / act_runner)
         run: |
-          set -e
-          apt-get update
-          apt-get install -y --no-install-recommends git ca-certificates
-          rm -rf /var/lib/apt/lists/*
-          git --version
+          set -euo pipefail
+          echo "== resolv.conf (before) =="; cat /etc/resolv.conf || true
+
+          # IMPORTANT: on enlève 1.1.1.1/9.9.9.9 qui time-out chez toi
+          cat > /etc/resolv.conf <<'EOF'
+          nameserver 192.168.1.1
+          nameserver 109.0.66.10
+          options timeout:2 attempts:2
+          EOF
+
+          echo "== resolv.conf (after) =="; cat /etc/resolv.conf
+          node -e 'require("dns").resolve4("deb.debian.org",(e,a)=>console.log("dns",e||a))'
 
       - name: Checkout (from Gitea, no external actions)
         env:
@@ -35,7 +41,6 @@ jobs:
           TOKEN: ${{ secrets.CI_TOKEN }}
         run: |
           set -euo pipefail
-
           if [ -n "${TOKEN:-}" ]; then
             AUTH="$(printf "oauth2:%s" "$TOKEN" | base64 | tr -d '\n')"
             git -c http.extraHeader="AUTHORIZATION: basic $AUTH" clone "$SERVER/$REPO.git" .
@@ -43,7 +48,6 @@ jobs:
             echo "ℹ️ CI_TOKEN absent → clone sans auth (repo public ou accès runner déjà OK)."
             git clone "$SERVER/$REPO.git" .
           fi
-
           git checkout "$SHA"
 
       - name: Install deps