Cupertino moved to Codeberg. Update your Homebrew tap.
Cupertino v1.4.2 moves the working Homebrew tap and binary distribution to Codeberg, with setup assets served from Fly.
I’m Mihaela. Senior iOS architect with fifteen-plus years on Apple platforms. I build AI-powered developer tools for the Apple ecosystem.
Currently shipping Cupertino, an open-source MCP server that gives Claude and other AI assistants offline access to Apple’s developer documentation. Featured in iOS Dev Weekly.
Recent posts
"The SwiftUI Oracle: Measuring a Clean Room Against the Real Thing"
How I prove a from-scratch SwiftUI engine is correct by holding it against real SwiftUI in 125 differential tests, with the actual code, the harness, the firewall, and the floating-point floor that makes agreement mean identical
SwiftUI Is One Graph, Over 40+ Years of Engineering
SwiftUI is the thin graph sitting above 40+ years of engineering. Measured against the real framework and read against Apple's own patent, it is a single demand-driven graph, and the least remarkable engine in the stack it rests on. Here is SwiftUI laid bare, with a hint of the far more interesting machines underneath.