tailwindcss-intellisense VS tailwindcss-classnames

It'll autocomplete classes in CSS with @apply, but it won't autocomplete custom classes from CSS in HTML

For fixing the tailwind's lsp we have to change some of the codebase of tailwind's lsp to make fix this issue for Neovim.

I don't have a full answer, but share your frustrations. This isn't easy to do until Tailwind support ES Modules [1] [2].

Seems others have had bad perf with tailwind lsp: https://github.com/tailwindlabs/tailwindcss-intellisense/issues/444

It should work now: https://github.com/tailwindlabs/tailwindcss-intellisense/pull/656 , you can see there was a problem: https://github.com/helix-editor/helix/issues/2213 but it was solved.

I don't know that. I actually don't have much experience with this kind but the language server code is available here.

I want to get LSP support when using tailwind-rn, but I cannot get the custom regex to work like described here.

You can install it by npm now https://github.com/tailwindlabs/tailwindcss-intellisense/tree/master/packages/tailwindcss-language-server and it's working.

There's also [tailwindcss-classnames](https://www.npmjs.com/package/tailwindcss-classnames) which is handy, despite the little bit of learning curve

One last thing that can be helpful is using a library like [tailwind-classnames](https://github.com/muhammadsammy/tailwindcss-classnames) which helps validate you are using correct class names, and if you don't TS will yell at you. It has the full capability and API of the known [classnames](https://www.npmjs.com/package/classnames) library, as it is just an extension of it.