{ config, pkgs, ... }: { documentation.nixos.enable = false; nix = { settings = { warn-dirty = false; experimental-features = [ "nix-command" "flakes" ]; auto-optimise-store = true; substituters = ["https://nix-gaming.cachix.org"]; trusted-public-keys = ["nix-gaming.cachix.org-1:nbjlureqMbRAxR1gJ/f3hxemL9svXaZF/Ees8vCUUs4="]; }; gc = { automatic = true; dates = "weekly"; options = "--delete-older-than 7d"; }; }; nixpkgs = { config = { allowUnfree = true; allowUnfreePredicate = pkg: builtins.elem (builtins.parseDrvName pkg.name).name ["steam"]; permittedInsecurePackages = [ "electron-25.9.0" ]; }; }; }