Guix is great on the command line, but guix search, guix install, and guix upgrade aren’t where most people want to spend their day. So there’s now a GUI for the everyday stuff: guix-gui.

It does what you’d expect from a package manager: browse a curated set of common apps, search the full catalogue, see what’s installed, and install, remove, or upgrade with a click. With a polkit agent running it can also guix pull and reconfigure the system, and there’s a channels tab to list, add, and remove channels (with a backup you can restore from if you break something). The privileged actions are the only ones that need polkit; everything against your user profile runs unprivileged.
It ships in seven languages and follows your system locale, with a live switch in Settings if you’d rather pick.
If you’re on the panther channel, it’s one command:
guix package -i guix-gui
This is early and unofficial, so bugs are to be expected. Please file them here: github.com/franzos/guix-rs/issues.