A monthly digest of what we shipped, what we learned, and what we cut. We publish the numbers and we publish the receipts.
Our contract validator gets a local clause library, OCR for scanned PDFs, and signed export — all generated on-device via CoreML. No upload, no telemetry, no third-party language services. The full release is live on the App Store today.
A write-up of the lock-free ring buffer, drop-out watchdog and SIMD-tuned biquad cascade we use across our procedural audio apps. Includes benchmarks on five devices and full repo links.
A short introduction to our newest team members: a privacy-engineering specialist joining from a UK regulator, and a graphics engineer from a games studio. Both senior, both full-time, both local.
An ambitious release that ships the entire film stock archive in 6 MB, plus a new non-destructive stack-based export pipeline that future-proofs user projects across releases.
How we measured and reduced cold start across our consumer app matrix — from 1.4 s on iPhone 12 to a sub-350 ms median — by deferring non-essential modules and adopting OSLog-based lazy imports.
Our slides, transcript and follow-up Q&A from this year's Northern Star Apple DevCon. Topics: ATT, age assurance, server-side ad mediation, and the case for going further than ATT requires.
The seed for our procedural generation framework, in pure Swift, MIT-licensed. Includes deterministic PRNG, curve and wavetable banks, and a Metal-backed image synth. Used in production across our apps.
Our quarterly reckoning. Revenue per app, day-30 retention, crashes, store-rating deltas, plus the three features that flopped and the two that paid for everything else.
Our side-income tracker adds a privacy-first tax estimate library for 14 countries and a one-tap share sheet that anonymises sensitive fields by default. Free for all existing users.
Honest, with timelines, root cause, customer impact, blast radius and the four concrete changes we shipped within 24 hours of the incident. No blame, plenty of fixes.
A long-form interview with our engineering director about the studio's shipping cadence, the privacy-first doctrine and what we'd build if we had unlimited time.
A major rewrite that brings native watchOS 11 workout support, a redesigned metronome with our new DSP, and a backwards-compatible data importer so nobody loses five years of practice logs.
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Subscribe to the digestEngineering notes, releases, post-mortems and the occasional inside-baseball rant. ~5 minutes. No churn.
