diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index 8d8f550..4280c53 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -10,9 +10,31 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - name: Prepare workspace
+      - name: Checkout source (adaptive)
         run: |
-          ls -la
+          set -euo pipefail
+          GW="$(ip route | awk '/default/ {print $3; exit}')"
+          CANDIDATES="
+          http://gitea:3000/${{ github.repository }}
+          http://${GW}:3000/${{ github.repository }}
+          http://host.docker.internal:3000/${{ github.repository }}
+          https://git.produktor.io/${{ github.repository }}
+          https://git.produktor.io/${{ github.repository }}.git
+          "
+          REPO_URL=""
+          for URL in ${CANDIDATES}; do
+            if git -c http.sslVerify=false ls-remote "${URL}" >/dev/null 2>&1; then
+              REPO_URL="${URL}"
+              break
+            fi
+          done
+          test -n "${REPO_URL}"
+          echo "Using repo URL: ${REPO_URL}"
+          rm -rf .git
+          git init .
+          git remote add origin "${REPO_URL}"
+          git -c http.sslVerify=false fetch --depth=1 origin "${{ github.sha }}"
+          git checkout --detach FETCH_HEAD
           test -f go.mod
 
       - name: Setup Go