{
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
    wfvm.url = "git+https://git.m-labs.hk/m-labs/wfvm";

    # wfvm uses a very old branch of nixpkgs (2023-05-25)
    wfvm.inputs.nixpkgs.follows = "nixpkgs";
  };

  outputs =
    {
      self,
      nixpkgs,
      wfvm,
    }:
    let
      # import nixpkgs
      pkgs = (import nixpkgs {});
    in
    {
      packages."${pkgs.system}".windows-vm = wfvm.lib.makeWindowsImage {
        windowsImage = (pkgs.fetchurl {
          url = "file:///home/primary/Downloads/tiny11.iso";
          sha256 = "ea9cee512457c763484dbeaeee98caba8c2e69e0420bdae8c4508e31ad8ccd99";
        });

        installCommands = [
          {
            name = "execute oem bat";
            script =
              let
                oem_bat = ./oem/install.bat;
              in
              ''
                ln -s ${oem_bat} ./oem_bat.bat
                win-put oem_bat.bat .
                echo Running Oem Bat...
                win-exec 'start /wait "" .\oem_bat.bat'
                echo Oem Bat finished
              '';
          }
          {
            name = "execute powershell";
            script =
              let
                powershell_oem = ./oem/powershell-stuff.ps1;
              in
              ''
                ln -s ${powershell_oem} ./oem_ps.ps1
                win-put oem_ps.ps1 .
                echo Running Oem PS...
                win-exec 'start /wait "" powershell -executionpolicy remotesigned -File .\oem_ps.ps1'
                echo Oem powershell finished
              '';
          }

        ];

      };
    };
}