I've been vibe coding SwiftUI menu bar apps for my new Mac, turns out Claude Opus 4.6 and GPT-5.4 are both competent at Swift programming, no need to even open Xcode! https://simonwillison.net/2026/Mar/27/vibe-coding-swiftui/
@simon what keeps me away from doing this kind of stuff is that I think I need to have a compiler and a development environment. I was surprised to read that you don't have to open Xcode.
I have several ideas for apps on my Mac but I don't want to install Xcode because when I tried last time it was utterly complex.
