{ pkgs, ... }: { # Auto GC and store optimizations nix = { settings.trusted-users = [ "root" ]; gc = { automatic = true; dates = "weekly"; options = "--delete-older-than 90d"; }; optimise.automatic = true; extraOptions = '' min-free = ${toString (100 * 1024 * 1024)} max-free = ${toString (1024 * 1024 * 1024)} ''; }; }