Hi Ludo! Ludovic Courtès writes: > As discussed earlier, I think you should use ‘-t machine’, which doesn’t > have the welcome message. ‘-t guile’ (the default) is meant for humans, > not for inter-process communication. Oh, for sure, I'm using `t machine` now. All I meant is that the aforementioned behaviour highlights a probable (harmless) bug, so if someone has got the time, they should look at what `guix repl` is doing with stdin, something is fishy. Cheers! -- Pierre Neidhardt https://ambrevar.xyz/