{
  nixConfig = {
    extra-substituters = [ "https://cache.clan.lol" ];
    extra-trusted-public-keys = [
      "cache.clan.lol-1:3KztgSAB5R1M+Dz7vzkBGzXdodizbgLXGXKXlcQLA28="
    ];
  };

  inputs = {
    munix.url = "git+https://git.clan.lol/clan/munix?shallow=1&ref=main";
    nixpkgs.follows = "munix/nixpkgs";
  };

  outputs =
    {
      nixpkgs,
      munix,
      ...
    }:
    let
      forAllSystems = nixpkgs.lib.genAttrs [
        "x86_64-linux"
        "aarch64-linux"
      ];
      musictest-vm =
        system:
        nixpkgs.lib.nixosSystem {
          modules = [
            munix.nixosModules.default
            (
              { pkgs, ... }:
              {
                system.stateVersion = "26.05";
                virtualisation.munix.defaultCommand = "euphonica";

                nixpkgs.hostPlatform = system;

                programs.dconf.enable = true;
                fonts.packages = with pkgs; [ adwaita-fonts ];
                environment.systemPackages = with pkgs; [ euphonica ];

                # Local background service as a demo that doesn't require network creds :)
                services.mpd = {
                  enable = true;
                  startWhenNeeded = true;
                  musicDirectory = "/etc/demo-music";
                  user = "appvm";
                  group = "appvm";
                  extraConfig = ''
                    audio_output {
                      type "pipewire"
                      name "Pipewire Output"
                    }
                  '';
                };
                environment.etc."demo-music/0101GhostsI.ogg".source = pkgs.fetchurl {
                  # just a CC-BY-SA licensed example
                  url = "https://archive.org/download/NineInchNailsGhostsI-Iv24bit48khz/0101GhostsI.ogg";
                  sha256 = "0iijm1c191aqkxybl4a4gvlpnf72hk4896lwvp0xixkhds88qzxi";
                };
              }
            )
          ];
        };
    in
    {
      packages = forAllSystems (system: {
        default = (musictest-vm system).config.system.build.munix;
      });
    };
}