{ pkgs, username, ... }: { nix = { package = pkgs.lix; gc = { automatic = true; options = "--delete-older-than 3d"; }; channel.enable = false; settings = { extra-platforms = ["aarch64-linux" "arm-linux"]; auto-optimise-store = true; allowed-users = ["${username}"]; trusted-users = ["${username}"]; experimental-features = "nix-command flakes"; keep-going = true; warn-dirty = false; http-connections = 50; }; }; }