Which package manager for PureSript?

Bower is now deprecated (still maintained):

However when we create a new PureScript project with `pulp init` a `bower.json` file is created and also the `bower_components` folder which contains the PureScript packages.

After reading some Github issues mentioning this problem it looks like PureScript is still using Bower to manage packages.

There is also another package manager: https://github.com/purescript/psc-package based on [package-sets](https://github.com/purescript/package-sets)

Also [spago](https://github.com/spacchetti/spago#quickstart) which has been released last December:
see https://discourse.purescript.org/t/spago-a-new-package-manager-and-build-tool-for-purescript/540
also using [package-sets](https://github.com/purescript/package-sets)

to read:
- https://discourse.purescript.org/t/package-sets-for-core-or-newcomers/603
- https://discourse.purescript.org/t/how-do-we-avoid-ecosystem-incoherence-in-the-future/209/17
- A repo for purescript documentation https://github.com/chexxor/purescript-documentation-discussion