Posts tagged #engineering

3 posts

Security-scoped bookmarks on macOS: a deep dive (with the gotchas)

When the user picks a folder, you get permission. When they relaunch your app, you don't — unless you used a security-scoped bookmark. Here's everything that breaks if you didn't.

Honam KangApr 17, 20264 min

Engineering

Codable migration patterns: schema evolution that doesn't lose user data

Adding a field to a Codable struct in Swift looks innocent. Done wrong, it eats your users' state. Here are five patterns that handle every kind of schema change cleanly.

Honam KangApr 16, 20264 min

Engineering

SwiftUI strict concurrency in 2026: what actually changed (and what to do about it)

Apple turned `SWIFT_STRICT_CONCURRENCY: complete` from optional to default for new projects. Here's what that breaks, what it catches, and the patterns that survive the upgrade.

Honam KangApr 15, 20264 min