Long-form engineering articles, written from systems that shipped. No listicles, no filler — if it’s here, it cost something to learn.
How a TensorFlow card-detection model actually gets onto an iPhone: the TensorFlow-to-ONNX path, the pitfalls that aren't in the tutorials, and how Core ML, ONNX Runtime, and MLX compare now.
Four ways to make shared state safe on iOS, in the order I actually reached for them — and the subtle bug that taught me to check each one.
What changes when your consumers are compliance departments: binary stability, API design as contract law, and versioning without trust.
Where actors actually earn their keep, why most of your types should stay Sendable values, and the isolation patterns that survived a live crypto exchange.
Parsing real certificates with Apple's swift-certificates library, a same-day fix for a hand-rolled expiration bug, and the three-way key check before trusting one at all.
Your widget gets roughly 30 MB before the system kills it. Where the memory actually goes, how to measure it honestly, and how to gate it in CI.
Everything that happens before your first frame, how to measure it without lying to yourself, and the startup architecture that keeps it fast for years.
More in progress — on Go service design for mobile backends, SDK developer experience, and engineering leadership. No schedule, no filler: articles ship when they’re true.