diff --git a/app-proto/src/main.rs b/app-proto/src/main.rs
index e581997..29716a0 100644
--- a/app-proto/src/main.rs
+++ b/app-proto/src/main.rs
@@ -1,3 +1,4 @@
+compile_error!("does not compute");
 mod add_remove;
 mod assembly;
 mod display;