diff --git a/.gitea/workflows/demo.yaml b/.gitea/workflows/demo.yaml
index dfa151c..61ced92 100644
--- a/.gitea/workflows/demo.yaml
+++ b/.gitea/workflows/demo.yaml
@@ -8,13 +8,12 @@ jobs:
     steps:
       - name: Check out repository code
         uses: actions/checkout@v4
-      - name: set docker host
-        run: export DOCKER_HOST=$XDG_RUNTIME_DIR/docker.sock
-      - uses: mr-smithers-excellent/docker-build-push@v6
-        name: Build & push Docker image
+      - name: Buildah
+        uses: redhat-actions/buildah-build@v2
         with:
           image: act-runner-test
-          registry: swaous.asuscomm.com
-          dockerfile: Dockerfile
-          username: ${{ secrets.DOCKER_USERNAME }}
-          password: ${{ secrets.DOCKER_PASSWORD }}
+          tags: ${{ gitea.sha }}
+          containerfiles: |
+            ./Containerfile
+      - name: print cwd
+        run: ls
diff --git a/Dockerfile b/Dockerfile
deleted file mode 100644
index 9fd5fbb..0000000
--- a/Dockerfile
+++ /dev/null
@@ -1,2 +0,0 @@
-FROM alpine:latest
-CMD ["echo", "\"hello world\""]