Learning by building.

Notes on SwiftUI, thoughtful interfaces, and building apps for Apple platforms, with lessons from the wider world of software along the way.

Connect Codex to Xcode 27's MCP server, enable headless access, search Apple's local documentation, and install Xcode skills for every project.

Optimize your Core Data fetches by pushing filtering and sorting to SQLite instead of handling it in Swift.

Protocol-Oriented Programming is a paradigm that shifts the focus from what an object is (its class) to what an object can do (its capabilities).

Discover why iOS development stands out as the ideal stack for building focused, high-quality software in 2025.

Discover the features that make Swift stand out among programming languages.

Build fully functional, data-syncing iOS apps without spinning up your own backend.