How about completions in guile-nrepl?

Drafted it in a few minutes. 

But it seems I need to start working on a client as well to make it more capable (for example to show completion types like procedures, symbols, modules).

#guile #scheme #lisp #clojure

https://cdn.fosstodon.org/media_attachments/files/111/141/965/475/739/343/original/9fc99efa5b770521.png 

 @123e16e8 oh nice! Might be a great candidate for conjure, the guile over stdio support we currently have isn't great. https://github.com/Olical/conjure