# TASK 67 — Per-event alert videos

> Catalog: [`TASKS.md`](../TASKS.md). Creator idea 2026-11-09.

**Problem.** The app plays one alert clip for every event. That single clip was always a placeholder.

**Idea.** A clip per event kind — Super Chat, Super Sticker, membership, subscription, gift, raid —
falling back to the default when a kind has none assigned.

- Each slot accepts a local file; the existing picker and the decode/keying pipe are reused unchanged
  (TASK 21 / 64), including green/blue screen — a clip is a clip.
- Missing slot → default clip → nothing, in that order, and never an error for the creator who only
  filled one.
- The alert box's display method, sound byte and ticker stay per-event as they already are.

**Tests:** slot selection per event kind, fallback chain, a keyed per-event clip composites correctly.