I know that there is (was?) a project to bring an Objective-C equivalent to the web called Cappuccino[0] as well.

It does look interesting though it lacks most modern DX, which means its adoption is going to be limited I imagine

[0]: https://www.cappuccino.dev/learn/

Yeah. The language is called Objective-J while Cappuccino is the framework. Objective-C : Cocoa = Objective-J : Cappuccino.

I remember that the company behind it was called "280 South". They seem to have opensourced it before they shut down.

Obviously I misremembered. I just visited the site linked above. The company was "280 North"

Because you drive north on 280 from Cupertino to San Francisco…

Ah, their office was in SF? I just thought their office was near 280 :)

Very cool that you can use the XCode interface builder to build the UI.

I wonder why this type of style hasn't caught on with React and friends? It would be really nice to be able to have an AppKit-quality UI programmable in React or Svelte.

I know I know mobile blah blah. But lots of web apps are complicated enough to only be useful on a large screen, like Figma.