{ config, lib, pkgs, ... }: { wrappers.fastfetch = { arg0 = lib.getExe' pkgs.fastfetch "fastfetch"; appendArgs = [ "--logo" "Guix" ]; env.NO_COLOR = "1"; xdg.desktopEntry.enable = true; }; build.extraPassthru.tests = { actuallyBuilt = let wrapper = config.build.toplevel; in pkgs.runCommand "wrapper-manager-fastfetch-actually-built" { } '' [ -e "${wrapper}/share/applications/fastfetch.desktop" ] && [ -x "${wrapper}/bin/${config.wrappers.fastfetch.executableName}" ] && touch $out ''; }; }