diff --git a/2023-08-29--dev-notes.md b/2023-08-29--dev-notes.md
index 8668a36..9910529 100644
--- a/2023-08-29--dev-notes.md
+++ b/2023-08-29--dev-notes.md
@@ -5,7 +5,10 @@ Short-term goals:
 - [x] Move notes, issues to their own branches
 - [x] Make worktrees for those branches
 
-- [ ] split into card, io, graph, all bound together in cardiograph.js
+- [/] split into card, io, graph, all bound together in cardiograph.js
+  - split a bit... display and keypad are both in `io.js`
+
+- [ ] make CPU errors throw errors
 
 - [ ] new CLI interface
   - [ ] arg parser
@@ -14,4 +17,6 @@ Short-term goals:
 
 - [ ] fix overflow flag
 - [ ] implement 'jmp ($FF)' on startup
-  - [ ] implement ROM
\ No newline at end of file
+  - [ ] implement ROM
+
+- [ ] re-implement single-stepping
\ No newline at end of file