{
  description = "Panoptikon – Watch the world from NixOS";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
  };

  outputs =
    inputs:
    let
      eachSupportedSystem = inputs.nixpkgs.lib.genAttrs inputs.nixpkgs.lib.systems.flakeExposed;
      inherit (inputs.nixpkgs) lib;
    in
    {
      nixosModules.default = import nix/module.nix;
      overlays.default = import nix/overlay.nix;

      apps = eachSupportedSystem (
        system:
        let
          nixosSystem = lib.nixosSystem {
            system = "x86_64-linux";
            modules = [
              inputs.self.nixosModules.default
              {
                nixpkgs.overlays = [ inputs.self.overlay ];
              }
              {
                virtualisation.vmVariant = {
                  virtualisation.graphics = false;
                };
                services.getty.autologinUser = "root";
                system.stateVersion = lib.trivial.release;
              }
              ./examples/simple.nix
              ./examples/bitcoin.nix
              ./examples/nixos.nix
              ./examples/system.nix
            ];
          };
        in
        {
          panoptikon-vm = {
            type = "app";
            program = lib.getExe nixosSystem.config.system.build.vm;
          };
        }
      );
    };
}