nixos-config/nixos/configs/workhorse/property.nix

{ lib, pkgs, config, ... }: {

  users.users.property = { isSystemUser = true; };

  systemd.services.property = {
    enable = true;
    wantedBy = [ "multi-user.target" ];
    path = [
      (pkgs.python3.withPackages (ps:
        with ps; [
          flask
          selenium
          beautifulsoup4
          urllib3
          sqlalchemy
          mysqlclient
          pytest
          dateparser
          geopy
          nltk
          click
        ]))
    ];

    serviceConfig = { User = "property"; };
    script = ''
      FLASK_APP=${<property>}/server.py \
      FLASK_RUN_PORT=7888 \
      flask run --host 0.0.0.0 \
      "$@"
    '';
  };

  services.nginx = {
    enable = true;
    virtualHosts = {
      "property.workhorse.private" = {
        locations."/" = { proxyPass = "http://localhost:7888"; };
      };
    };
  };

}