diff --git a/new-game.sh b/new-game.sh
index 7efe2aa..a69a9b1 100755
--- a/new-game.sh
+++ b/new-game.sh
@@ -37,6 +37,9 @@ Next:
      and src/lib/components/Board.svelte with its board. Keep the tests green.
   2. Fill in the hall's pitch, tag and about panel (src/lib/components/Hall.svelte),
      the rules page, the guide, src/app.html's description, and the palette in src/app.css.
+     Add static/og.png (1200 by 630) and static/apple-touch-icon.png (180 by 180):
+     app.html already points at them, and the static fallback serves the hall's
+     HTML for a missing file, so a share card without the image breaks quietly.
   3. Create the droplet (deploy/README.md), then replace __IP__ everywhere:
        grep -rl __IP__ . --exclude-dir=node_modules | xargs sed -i '' 's/__IP__/<ip>/g'
   4. Create a Sentry project (the Sentry MCP can) and put its DSN and project id