That looks really cool :) does it still depend on Bower?

There's no "dependency" per se, but in practice most of the community still uses bower.

There's an effort to make something better and on the same vibe as Haskell's `stack`, which is `psc-package` [1].

I switched to it for all new projects, and while it still has some rough edges, I don't really miss bower.

[1]: https://github.com/purescript/psc-package

Unfortunately, does not use persistent data structures.

Yes it does.