Skip to the card

Card 590 of 9932026-09-20 issue

Observed arrival · 2026-09-20

OpenTimer, minus the spreadsheet chaos

opentimer.dev Visit website
Editorial interest 82/100 Selection signal · not a rating of the site

An open-source, self-hosted system for timing cross-country meets with live results, RFID readers, rosters, and starting-gun hardware.

Landing page captured for the 2026-09-20 issue.
For
Cross-country meet operators and race-timing volunteers
Worth noticing
The stack supports concurrent races, LLRP RFID readers, starting-gun triggers, and public results.

Field notes

The documented deployment combines FastAPI, SvelteKit, PostgreSQL, and an nginx reverse proxy in a five-container Docker Compose stack. A demo meet is seeded during setup, and the homepage supplies a default operator passcode for local use. Hardware support is separated into optional modules: one watches a host trigger file for starting-gun events, while another connects to LLRP-compatible RFID readers and exposes per-antenna status.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

OpenPublic substance visible
PrettyNotable craft visible
ProPolished or operationally mature
NicheUnusually specific use

One card from the complete issue

Mahjongg With Footnotes

304,744 arrived 1,000 judged 993 catalogued Enter the complete issue
opentimer.dev

Landing page observed 2026-09-20. The live site may have changed.