{
  description = "Invoiceplane invoice template development shell";

  inputs.nixpkgs.url = "nixpkgs/nixos-24.11";

  outputs = { self, nixpkgs, ... }@inputs:
  let
    pkgs = nixpkgs.legacyPackages.x86_64-linux;
    start =
      pkgs.writeShellScriptBin "start" ''
        set -e
        export QEMU_NET_OPTS="hostfwd=tcp::8080-:80"
        ${pkgs.nixos-shell}/bin/nixos-shell --flake .
       '';
  in {
    nixosConfigurations.vm = nixpkgs.lib.nixosSystem {
      system = "x86_64-linux";
      specialArgs.inputs = inputs;
      pkgs = import nixpkgs {
	overlays = [
          (self: super: {
            invoiceplane = super.invoiceplane.overrideAttrs (oldAttrs: rec {
              installPhase = oldAttrs.installPhase + ''
                rm -r $out/application/views/invoice_templates/pdf
                ln -sf /var/lib/invoiceplane/localhost/pdf $out/application/views/invoice_templates/pdf
              '';
            });
          })
        ];
      };
      modules = [
        ({ lib, config, pkgs, ... }: {

	  services.invoiceplane.sites."localhost" = {
	    enable = true;
	    settings.IP_URL = "http://localhost:8080";
	  };

          nixos-shell.mounts.extraMounts = {
            "/var/lib/invoiceplane/localhost/pdf" = {
               target = /home/onny/projects/invoiceplane-vtdirektmarketing;
               cache = "none";
            };
          };

          system.stateVersion = "24.11";
          services.getty.autologinUser = "root";
          documentation = {
            info.enable = false;
            man.enable = false;
            nixos.enable = false;
          };
          nix = {
            registry.nixpkgs.flake = inputs.nixpkgs;
            settings.experimental-features = [ "nix-command" "flakes" ];
          };
        })
      ];
    };

    packages = { inherit start; };
    defaultPackage.x86_64-linux = start;

  };
}