The First Machine We Didn't Own 21 September 2026 · 15 min · The Cortex Fleet #13 A friend brought a MacBook over for an evening. Eight minutes after enrolling it was serving claims; within a day it had found a bug that had been in our worker since August and was invisible on every machine we owned. T… Fourteen Cases, Three Defects: Letting the Workloads Tune the Scheduler 26 August 2026 · 7 min We wrote the expected route for every kind of work the cluster does before sending a single request. The first run was 6 hits, 5 misses, 3 gaps. Every miss was a scheduler defect nobody had noticed for weeks — including …