ira gets race planning: from telemetry display to session companion

ira started as a telemetry display. Connect to iRacing's shared memory, show speed and RPM, log to CSV. Useful but narrow. On Saturday it gained race guides, session registrations, owned content detection, and a test suite. Seven commits. One day. A different kind of application. What ira was A C program that did three things well: Read telemetry from iRacing’s shared memory at 60Hz Log that telemetry to CSV for post-session analysis Launch helper applications automatically when a session starts All local. No network calls. No authentication. The iRacing SDK gives you shared memory for free, and everything ira did was built on that foundation. ...

March 1, 2026 · 3 min · Christopher Griffiths