@maridonkers maybe, but I'm not sure how to.

@jonn Haskell language server with eglot works (ish)

Alt-. and Alt-, work when haskell interactive started from Emacs via C-z (or M-x haskell-interactive-switch)

https://github.com/maridonkers/emacs-config/blob/master/loader.org

@jonn (Sometimes have to explicitly load in the interactive Haskell window to get M-. and M-, to work.)