How I run a TestFlight beta with 200 testers without losing my mind
TestFlight is the iOS beta standard. At 200+ testers the organisation gets tricky. Feedback flow, versioning, and communication.
When to shard a database, and how to make the call
Sharding is the classic answer at high scale. Done at the wrong time it's serious operational debt. Here's how to decide.
iOS accessibility: the minimum VoiceOver and Dynamic Type discipline I won’t skip
Most iOS devs treat accessibility as an afterthought. Here's the minimum set of things I actually do on every project.
API rate limiting: token bucket vs sliding window, in practice
Rate limiting is how you stop API abuse and enforce fair use. Two popular algorithms and their practical implementations.
Managing an app localized into 36 languages: automation is non-negotiable
My 12 iOS apps are localized into 36+ languages. Manual management isn't an option. String management, release workflow, and translation services.
Read replica strategy: when it earns its keep, when it’s just complexity
A read replica is the classic database scaling tool. On some projects it creates more problems than it solves. When to add…
Migrating from WatchKit to a native watchOS app: lessons from two apps
watchOS 9 deprecated the old WatchKit extensions. I ran the migration on two apps and a few surprises showed up along the…
REST vs GraphQL: when GraphQL actually wins
GraphQL gets pitched as the default for modern APIs. On most projects REST ends up winning. Here's where GraphQL really pays off.
Apple Watch companion apps: five decisions that actually matter
I added a Watch app to Dentii, and syncing with the iPhone app was trickier than I expected. Five decisions that actually…
Database connection pool sizing: why the defaults are wrong
Every framework picks a different connection pool default, and most of them are wrong. How I size pools from real production experience.
iOS deep linking in 2025: URL schemes, Universal Link, App Clip
Deep linking on iOS has had three generations: URL scheme, Universal Link, App Clip. Which one when, and how to set them…
API versioning: URL, header, content negotiation, which one ships?
/api/v1/users versus header-based negotiation. What holds up in production, and what looks clean on paper but bites you in production.