> What shell do you use? bash
> Could you check if this is somehow due to PS1? For instance run: > > guix environment neovim > export PS1='\u\$ ' > write a loooong line That fixed it, so it isn't a Guix bug. Thanks a lot! It was something wrong with how I set the colors with tput that only manifested when I entered an environment cause that appends a colored "[env]" to my PS1.