I have to work with some closed source external tech at my job right now and I hate it so much. Probably more to do with the specific tech than the open/closed factor, but it feels really bad whenever there's an issue or an improvement that could be made but I'm not allowed to fork or directly change the dependency.

I honestly feel so burned by it that I will think strongly about ever joining another company that isn't using more open source tech.

I have no opinion on datastar, and I support things like tailwind selling pre built tailwind components to make money (not that I use either, but idea wise I'm happy for them). But sometimes working with closed source is a real pain.