diff --git a/.gitignore b/.gitignore
index 10a9fb8..880bf00 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,6 +21,7 @@ frontend/dist/
 frontend/.vite/
 frontend/vite.config.js
 frontend/vite.config.d.ts
+*.afdesign~lock~
 logs/
 *.sqlite3
 *.db
diff --git a/docs/architecture.md b/docs/architecture.md
index 37b30d4..c24e200 100644
--- a/docs/architecture.md
+++ b/docs/architecture.md
@@ -20,6 +20,7 @@ WalkUp is a baseball walk-up song app with a React PWA frontend and a FastAPI ba
 - The home page is a lightweight landing page that orients users and links to the Library and Gameday views.
 - The app is shipped as a PWA with install and offline-prep behavior.
 - Normalized playback media is cached by the service worker, and the backend marks those files cacheable while keeping auth/session responses `no-store`.
+- Editable artwork sources live in `frontend/assets/design/`, while the exported web assets used by the app are kept in `frontend/public/`.
 
 ## Backend