{
  description = "Invoiceplane invoice template development shell";

  inputs.nixpkgs.url = "nixpkgs/nixos-25.05";

  outputs =
    { self, nixpkgs, ... }@inputs:
    let
      pkgs = nixpkgs.legacyPackages.x86_64-linux;
      start = pkgs.writeShellScriptBin "start" ''
                set -e
        	export NIXPKGS_ALLOW_INSECURE=1
                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: {
              froide-govplan = super.froide-govplan.overrideAttrs (oldAttrs: rec {
                src = ./.;
                postInstall = oldAttrs.postInstall + ''
                  rm -r $out/${pkgs.python3.sitePackages}/froide_govplan/templates
                  ln -sf /var/lib/froide-govplan/templates $out/${pkgs.python3.sitePackages}/froide_govplan/templates
                  cp -r froide_govplan/static $out/${pkgs.python3.sitePackages}/froide_govplan/
                '';
              });

              pythonPackagesExtensions = super.pythonPackagesExtensions ++ [
                (python-final: python-prev: {
                  moto = python-prev.moto.overridePythonAttrs (oldAttrs: {
                    doCheck = false;
                  });
                })
              ];

            })
          ];
        };
        modules = [
          (
            {
              lib,
              config,
              pkgs,
              ...
            }:
            {

              virtualisation = {
                memorySize = 8000;
                diskSize = 4096;
                cores = 4;
              };

              disabledModules = [ "services/web-apps/froide-govplan.nix" ];

              imports = [ ./froide-govplan.nix ];

              services.froide-govplan = {
                enable = true;
                package = pkgs.froide-govplan;
                settings = {
                  DEBUG = lib.mkForce true;
                  CSRF_TRUSTED_ORIGINS = [ "http://localhost:8080" ];
                };
              };

              nixos-shell.mounts.extraMounts = {
                "/var/lib/froide-govplan/templates" = {
                  target = /home/onny/projects/verwaltungstracker/froide_govplan/templates;
                  cache = "none";
                };
              };

              system.stateVersion = "25.05";
              services.getty.autologinUser = "root";
            }
          )
        ];
      };

      devShells.x86_64-linux.default = pkgs.mkShell {
        packages = [pkgs.python3Packages.mastodon-py ] ++ pkgs.froide-govplan.dependencies;
        shellHook = ''
          export GDAL_LIBRARY_PATH="${pkgs.gdal}/lib/libgdal.so"
          export GEOS_LIBRARY_PATH="${pkgs.geos}/lib/libgeos_c.so"
        '';
      };

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

    };
}