Are you using your yourself?

[wmertens]

I noticed that this repo hasn't changed recently, and also that Meta still didn't open source Stylex, so I wonder if it's working well for you.

Are you happy with this approach?

[SukkaW]

@wmertens IMHO, if you are looking for an Atomic CSS-in-JS library that looks like stylex, you could try style9.

style9 is being actively maintained, widely used, and has a similar API to Facebook's stylex.

You can seamlessly switch from style9 to stylex without any effort once stylex is open-sourced and published: just replace style9 with @stylexjs/stylex in your codebase.

[lamhungypl]

@wmertens I've looked through the project, this maybe is a readable and run-able version of compiled FB source code.
I'd be nice in studying and inspiration but be careful to use it in your production.