15:I[981,["658","static/chunks/658-a698693f56d0116a.js","183","static/chunks/183-6beeeb801c274aaa.js","474","static/chunks/app/%5Btype%5D/layout-631c4730b83c8223.js"],"Posts"] 16:T422,Hi everyone,

I’ve been building a programming language called Constela.

Constela lets you build web pages using JSON instead of JavaScript. UI structure, state, and events are described as a constrained JSON DSL, which is validated and compiled before execution.

The idea is to treat UI not as handwritten code, but as verifiable data. This allows issues like undefined state references, invalid updates, or broken UI structure to be detected before the UI ever runs.

This approach is especially aimed at workflows where UI is generated or heavily modified by machines or AI, where runtime-only errors make correctness hard to reason about.

Project: https://github.com/yuuichieguchi/constela

Docs: https://constela-dev.vercel.app/

I’d be interested in feedback from people working on compilers, UI frameworks, or AI-assisted development.17:T450,Hello HN! I've been struggling using macOS in main part due to a lack of a fast app launcher. Personally, I found solutions like Alfred and Spotlight to be too slow or straight up unreliable with the searches, and wasn't satisfied with them. I just wanted something to swap between apps quickly! So I made one. Fetch is the result of my frustration.

I designed it to be simple and really fast. It only does one thing: search for apps. To try make things quick and load instantly, it uses the same native renderer as Zed, some operations are multi-threaded, apps are indexed, etc.

Despite the core of the app being minimalist, I did put effort into making sure Fetch looks and feels right to use. It's simple, doesn't get in the way, and ideally should work just as you'

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