diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index 798204f..dcabf62 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -1,11 +1,10 @@
 name: First CI
-
-on:
-  [push]
+on: [push]
 
 jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - name: Printing hello
-        run: echo "Hello, 🌍"
+      - uses: actions/checkout@v4
+      - name: build using gcc
+        run: gcc -Wall -Werror main.c
diff --git a/main.c b/main.c
new file mode 100644
index 0000000..b5f69bd
--- /dev/null
+++ b/main.c
@@ -0,0 +1,5 @@
+int main()
+{
+    printf("Halo, Welt!");
+    return 0;
+}