libiserv exports Lib module, which is too generic name.

See https://mail.haskell.org/pipermail/ghc-devs/2021-October/020320.html for a confusing error.

I'd expect this to not work

% ghci-9.0.1
GHCi, version 9.0.1: https://www.haskell.org/ghc/  :? for help
Loaded GHCi configuration from /home/phadej/.ghci
Prelude> :m +Lib
Prelude Lib> :browse
serv ::
  Bool
  -> Lib.MessageHook
  -> GHCi.Message.Pipe
  -> (forall a. IO a -> IO a)
  -> IO ()

Either Lib module in libiserv should be named differently, or hidden as other-modules if its internal.

EDIT: My ghci configuration only restores the prompt behavior to show imported modules, how handy! i.e. it's :set prompt "%s> "