How I put Apple Intelligence into my app Look (opens in new tab)

So this is a little story about how I added on-device AI to my macOS app, Look, using Apple's Foundation Models framework. I wanna share what was good, what was painful, some real code, and why I think building on this now is actually a good chance even if the model is still small. First, what is Look? Look is a keyboard launcher for macOS. You press a hotkey, you type, and it find your apps, files and folders super fast. The search core is written in Rust so it is quick. Look Repository But ...