diff --git a/.gitea/workflows/docker-build.yaml b/.gitea/workflows/docker-build.yaml
index 586bfcb..89bb002 100644
--- a/.gitea/workflows/docker-build.yaml
+++ b/.gitea/workflows/docker-build.yaml
@@ -1,66 +1,55 @@
 name: Docker Build and Push
-
 on:
-  pull_request:
   push:
+    branches: [master]
+  pull_request:
   schedule:
     - cron: '30 3 * * 3'
-
 jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout
-        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
-      - name: Hadolint
-        uses: hadolint/hadolint-action@54c9adbab1582c2ef04b2016b760714a4bfde3cf
-
+      - uses: https://github.com/actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
+      - uses: https://github.com/hadolint/hadolint-action@54c9adbab1582c2ef04b2016b760714a4bfde3cf
+        with:
+          dockerfile: Dockerfile
   build:
     runs-on: ubuntu-latest
     needs: lint
     steps:
-      - name: Checkout
-        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
+      - uses: https://github.com/actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
       - name: Build image
         run: docker build -t ci-image:${{ github.sha }} .
       - name: Save image
-        run: docker save ci-image:${{ github.sha }} > image.tar
-      - name: Upload artifact
-        uses: ChristopherHX/gitea-upload-artifact@62ac910c5d3dfa85c7cb2df15afe2e342b2407c2
+        run: docker save ci-image:${{ github.sha }} -o image.tar
+      - uses: https://github.com/ChristopherHX/gitea-upload-artifact@62ac910c5d3dfa85c7cb2df15afe2e342b2407c2
         with:
           name: docker-image
           path: image.tar
-
   test:
     runs-on: ubuntu-latest
     needs: build
     steps:
-      - name: Checkout
-        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
-      - name: Download artifact
-        uses: ChristopherHX/gitea-download-artifact@75635f32b4c1c41c4b3d64e8f85210112ed4c9c7
+      - uses: https://github.com/actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
+      - uses: https://github.com/ChristopherHX/gitea-download-artifact@75635f32b4c1c41c4b3d64e8f85210112ed4c9c7
         with:
           name: docker-image
       - name: Load image
         run: docker load < image.tar
       - name: Run tests
         run: bash tests/test.sh ci-image:${{ github.sha }}
-
   push:
     runs-on: ubuntu-latest
-    if: github.event_name != 'pull_request'
     needs: test
+    if: github.event_name != 'pull_request'
     steps:
-      - name: Checkout
-        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
-      - name: Download artifact
-        uses: ChristopherHX/gitea-download-artifact@75635f32b4c1c41c4b3d64e8f85210112ed4c9c7
+      - uses: https://github.com/actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10
+      - uses: https://github.com/ChristopherHX/gitea-download-artifact@75635f32b4c1c41c4b3d64e8f85210112ed4c9c7
         with:
           name: docker-image
       - name: Load image
         run: docker load < image.tar
-      - name: Login to Docker Hub
-        uses: docker/login-action@650006c6eb7dba73a995cc03b0b2d7f5ca915bee
+      - uses: https://github.com/docker/login-action@650006c6eb7dba73a995cc03b0b2d7f5ca915bee
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
diff --git a/tests/test.sh b/tests/test.sh
index f3089fe..52d73c8 100644
--- a/tests/test.sh
+++ b/tests/test.sh
@@ -1,8 +1,31 @@
 #!/bin/bash
 set -euo pipefail
-IMAGE="${1:-}"
-if [ -z "$IMAGE" ]; then
-  echo "Usage: $0 <image>"
+
+IMAGE="$1"
+FAILED=0
+PASSED=0
+
+# Test 1: container runs and exits
+if docker run --rm "$IMAGE" --help > /dev/null 2>&1; then
+  echo "PASS: container runs successfully"
+  PASSED=$((PASSED + 1))
+else
+  echo "FAIL: container failed to run"
+  FAILED=$((FAILED + 1))
+fi
+
+# Test 2: produces output
+OUTPUT=$(docker run --rm "$IMAGE" --version 2>&1)
+if [ -n "$OUTPUT" ]; then
+  echo "PASS: produces output"
+  PASSED=$((PASSED + 1))
+else
+  echo "FAIL: no output"
+  FAILED=$((FAILED + 1))
+fi
+
+echo ""
+echo "$PASSED/$((PASSED + FAILED)) tests passed"
+if [ "$FAILED" -gt 0 ]; then
   exit 1
 fi
-docker run --rm "$IMAGE" --version