diff --git a/src/components/cardStack/layouts/types.ts b/src/components/cardStack/layouts/types.ts
new file mode 100644
index 0000000..ffc9524
--- /dev/null
+++ b/src/components/cardStack/layouts/types.ts
@@ -0,0 +1,4 @@
+export interface TimelineItem {
+  id: string;
+  [key: string]: any;
+}