Looks like `HaRe` has been abandoned. The last commit here is from 2017. There are no build plans for GHC > 8.0. I made this fact explicit via revisions, e.g.: https://hackage.haskell.org/package/HaRe-0.8.4.1/revisions/ Maybe you want to make this explicit by archiving this repo or flagging the unmaintained status prominently in the README. Is there any follow-up project? I am interested in a tool to find clones in Haskell code bases...