check-in #

event check-in and badge printing for at://chicago.

Thanks to Sri, whose atproto.nyc check-in setup, notes, and printer tips made this possible.

live: https://check-in.chicago.at

what it does #

• verifies attendee check-ins with Verifire
• opens post intents for Bluesky, Blacksky, and Witchsky
• supports manual/no-post badge lookup with actor typeahead
• streams check-ins over SSE to a wall view and laptop print worker
• prints 4x3 thermal name badges from the laptop-connected printer

docs #

• flow - attendee, laptop, no-post, and wall flows
• setup - printer, hardware, event-day checklist, and undo

dev #

npm install
npm start

Open http://localhost:3050.

deploy #

npm run cf:deploy

print worker #

CHECKIN_SERVER_URL="https://check-in.chicago.at" \
PRINT_MODE="lp" \
PRINTER_NAME="_PM_249_BT" \
npm run print-worker