Its brewpi.mat output had no consumer - the GUI never subscribed to the 'Tracer' channel, and SudLogTask's run-scoped JSON logs now cover the same sensor/heater/tc data for actual analysis. Drop the task, its DT_TASK_TRACER interval, and the wiring in server/brewpi.py. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DkkuG48uHFCGKe6dPSERFk