diff --git a/.github/e2e/target.env b/.github/e2e/target.env
new file mode 100644
index 0000000..957c59f
--- /dev/null
+++ b/.github/e2e/target.env
@@ -0,0 +1,2 @@
+action-ref=79dfaaef8e18815e923592c1d5098c7e0d25ecf6
+clang-version=21
diff --git a/src/demo.cpp b/src/demo.cpp
index 0c1db60..62c7898 100644
--- a/src/demo.cpp
+++ b/src/demo.cpp
@@ -6,12 +6,19 @@
 // using size_t from cstddef
 size_t dummyFunc(size_t i) { return i; }
 
+int scale(int value)
+{
+    if (value > 0)
+        return value*3;
+    return 0;
+}
+
 int main()
 {
     for (;;)
         break;
 
-    printf("Hello world!\n");
+    printf("Hello world! %d\n", scale( 14 ));
 
     return 0;
 }