I'm currently helping to assemble a set of use cases that a more convenient means of accessing GHC nightly builds would support. More details are available here: https://discourse.haskell.org/t/ghc-nightlies-how-would-you-use-them/5655

Please feel free to provide feedback on that thread or via email - I'll assemble it into a final report when the discussion seems to have died down.

All the best,

David