diff --git a/pttodoest/src/main.rs b/pttodoest/src/main.rs
index 1c28406..962d0a0 100755
--- a/pttodoest/src/main.rs
+++ b/pttodoest/src/main.rs
@@ -36,6 +36,12 @@ fn main() {
             serde_yaml::to_string(&file.events().unwrap().snapshot().unwrap()).unwrap(),
         );
     }
+
+    if flags.edit {
+        panic!(
+            "not impl: create tempfiles of now up-to-date-snapshots, diff vim'd, persist difs to logs, render logs"
+        );
+    }
 }
 
 #[derive(Debug, Parser)]