Engineering
SwiftUI Profiling with Instruments: 100,000 Calendar Events
A 100,000-event stress test sent us through SwiftData, SwiftUI layout, navigation caches, and a surprisingly expensive hover effect.
Maciej Szamowski6 min read
Stories
Build notes
What hora's First Public Beta Broke in Five Days
Five days into hora's public beta, real calendars exposed SwiftData hangs, OAuth edge cases, and sync assumptions my test account never could.
Maciej Szamowski6 min read
Build notes
Six QA Groups and the Week hora Stopped Feeling Fragile
A founder note from hora 0.6: recurring deletes, widget deep links, RSVP gestures, editor polish, and the SwiftData migration I reverted.
Maciej Szamowski6 min read