{ pkgs, ...}: { environment.systemPackages = with pkgs; [ cachix home-manager vim zstd ]; nix.settings = { trusted-substituters = ["https://nix-community.cachix.org"]; trusted-public-keys = ["nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="]; }; }