Ok, when can we meet? I have never seen it work, and, as said, I review 100s of project a year; everything ts is super slow so far. Maybe you have something.
Their hot reload cycle is fast because esbuild doesn't type check the code, it just removes types from Typescript so it turns into JS (it may do minification and tree shaking but in dev, they probably remove that). I've written some esbuild plugins and can confirm that on incremental builds, esbuild will probably never take more than a few ms even on larger projects (because it doesn't matter how big your project is, esbuild will only rebuild what changed, which usually is a few files only).
No one wants to show me though. Is that not weird? Fanbois say it is, but not one person even sends an open source project that demonstrates it. I don’t understand that? Please show me a non trivial project on GitHub that does this in ms like you say. All I try are slow af. Emacs is notoriously slow as a lisp; it is always faster, for me, than anything ts and definitely not trivial. Sbcl/cl blows it all away. Please an example in ts or it didn’t happen.
Download some horror show like Unkey and show a video of its millisecond hot reload…
You are asking for someone else to do a demo of something trivial that takes 15 minutes to setup yourself (with Vite). Nobody is biting because it’s a strange (and, frankly, lazy) request.
If you tried and still think such a setup is not possible, send me an email (in profile) and I can do a 10-15 minute show&tell.
