first commit

calcom/packages/lib/gtm.ts

@@ -0,0 +1,8 @@
+declare const window: Window & { dataLayer: Record<string, unknown>[] };
+
+export const pushGTMEvent = (event: string, data?: Record<string, unknown>) => {
+  window.dataLayer?.push({
+    event,
+    ...data,
+  });
+};