SBT-like features in the Haskell build ecosystem

Question

I\'ve been using Scala with SBT quite a bit lately. The REPL loop of has a handy feature: ~ COMMAND, meaning perform COMMAND for every source file change in the pro

Answer 1

The ghcid project provides something limited to ~ :reload. It provides a few extra features (format to a fixed number of lines, persist warnings from previously loaded files), but not the generality of running any command.