{ config, pkgs, ... }: let unstable = import {}; in { nix.nixPath = [ "nixos-unstable=https://nixos.org/channels/nixos-unstable/nixexprs.tar.xz" ]; #currently installed this software through nix-env -f https://nixos.org/channels/nixos-unstable -iA [ packages ] environment.systemPackages = [ unstable.ripcord ]; }