nix/module/VirtManager.nix

{ pkgs, lib, config, ... }: with lib; let
	cfg = config.module.virtmanager;
in {
	options = {
		module.virtmanager.enable = mkEnableOption "VM support.";
	};

	config = mkIf cfg.enable {
		virtualisation.libvirtd.enable = true;
		programs.virt-manager.enable   = true;

		# HACK: Fixes bug: https://www.reddit.com/r/NixOS/comments/1afbjiu/i_get_a_nonetype_error_when_trying_to_launch_a_vm/
		# May also need to run: `gsettings set org.gnome.desktop.interface cursor-theme "Adwaita"`
		environment.systemPackages = with pkgs; [
			# glib
			adwaita-icon-theme # default gnome cursors,
		];
	};
}