A per-event queue board for a repair cafe. Customers sign items in on a shared tablet; volunteers drag repairs through Queue, In progress and Done on a dashboard, then export the day's records as CSV. Zero npm dependencies: node:http plus JSON files on disk, no build step. Categories and house rules are set in config.json. Events are deleted 7 days after creation. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>