{ config, mkOizysModule, pkgs, ... }: let win10vm = pkgs.stdenvNoCC.mkDerivation rec { name = "win10vm"; unpackPhase = "true"; version = "unstable"; windows10Logo = pkgs.fetchurl { url = "https://upload.wikimedia.org/wikipedia/commons/c/c7/Windows_logo_-_2012.png"; hash = "sha256-uVNgGUo0NZN+mUmvMzyk0HKnhx64uqT4YWGSdeBz3T4="; }; desktopItem = pkgs.makeDesktopItem { name = "win10vm"; exec = "VBoxManage startvm win10"; icon = "${windows10Logo}"; desktopName = "Windows 10 VM"; }; installPhase = '' install -Dm0644 {${desktopItem},$out}/share/applications/win10vm.desktop ''; }; in mkOizysModule config "vbox" { virtualisation.virtualbox = { host.enable = true; }; users.extraGroups.vboxusers.members = [ "daylin" ]; environment.systemPackages = [ win10vm ]; }