mekeor

You may use direnv which supports many IDEs, e.g. VSCode and Emacs. Here's a tutorial for Emacs: https://rednosehacker.com/combo-guix-shell-emacs-envrc-el

I very much prefer the Guix community because based on my personal experience, it is more friendly and helpful than the Nix community. The main help ressources are the help-guix mailing-list and the IRC channel.

Actually Guix System also runs on GNU Hurd. Also one might try porting it on kFreeBSD as well.

which solid-dev-tool shows are graph?

there's a lispy alternative to nix, called gnu guix, which uses guile/scheme instead of nix-lang.