Quiz · 6 questions
⚡ The Latency War
How the fast path got shipped slow, and the hotkey race that nearly broke it
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Quiz
01Pre-refactor, every Firekeeper dictation took 10–40 seconds. What was the actual cause?
02The fix was a cleanup lane split. What distinguishes the dictation lane from the command lane?
03Firekeeper observes a bare Fn-key hold using NSEvent flagsChanged monitors plus CGEventSource.keyState, rather than a suppressing CGEventTap. Why avoid the event tap?
04The double-tap-to-hands-free feature originally crashed with 'No recording was in progress.' What was the race, and how was it settled?
05On 2026-09-15 a census found that no Mac had produced a model-cleaned dictation through the 'local fast' lane. What was the root cause?
06After a Swift 6 sweep added @MainActor to AudioCaptureService, Firekeeper crashed on the first recording. Why?
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