libraries/process/System/Process/CommunicationHandle/Internal.hsc:26:8: error: [GHC-87110]
    Could not load module ‘System.Posix’.
    It is a member of the hidden package ‘unix-2.8.4.0’.
    Use -v to see a list of the files searched for.
   |
26 | import Control.Exception (catch, throwIO)
   |        ^^^^^^^^^^^^