Senko — Capture & Focus

Voice capture that turns a spoken thought into structured tasks, events and reminders. Whisper large-v3-turbo runs on-device (574 MB model, resumable chunked download) so no audio ever leaves the phone.

Claude extraction pipeline with a 24-case regression harness gating every prompt or model change; measured cost per call (0.21¢ vs 0.53¢) to pick the model on data rather than intuition.

Two native iOS system extensions (DeviceActivityMonitor, ShieldConfiguration) behind Apple's Family Controls entitlement, so app blocking survives the app being killed.

Shipped end to end: Supabase (Postgres, RLS, edge functions), RevenueCat subscriptions, EN/FR i18n, App Store privacy compliance, 500+ tests.

The vision: an AI chief of staff replacing Todoist, Notion, the calendar and Opal with a single app — distracting apps stay blocked until real commitments are done.