diff --git a/frontend/src/interaction/index.ts b/frontend/src/interaction/index.ts
new file mode 100644
index 0000000..e3ac39b
--- /dev/null
+++ b/frontend/src/interaction/index.ts
@@ -0,0 +1,2 @@
+export { default as SelectionEngine } from './SelectionEngine';
+export { default as SnapEngine } from './SnapEngine';