Stretched window and weird font spacing

Experimenting with the nix package manager and everything I’ve installed has worked fine except for tilix. The tilix window is stretched horizontally and the fonts have too much space between.

I installed it with a simple:

nix-env -i tilix

Is there something I should do differently?

It’s unlikely that your tilix font settings is being managed by nix. (Though it can be done with a bit of hacking + Home Manager)

Does it have a settings dialog you can open? If not, I’d hazard a guess that the selected font can be found somewhere in ~/.config/tilix.

(If you’re running NixOS then more system fonts can be made available by placing them in fonts.fonts)