New comment by prez on void-packages repository

https://github.com/void-linux/void-packages/issues/26959#issuecomment-746044120

Comment:
As you mentioned, ghcup is not a shell script. It is a Haskell program serving the same purpose as rustup, so the question whether inclusion in the repositories would make sense is kind of moot. It is also the recommended way to install ghc, cabal and hls. 

Unfortunately I have not yet found the time to experiment with building this myself, however `bootstrap-haskell` doesn't look relevant from a first glance.