{ config, pkgs, lib, ... }: {
  services.jupyterhub = {
    enable = true;
    port = 6501;
    # https://github.com/jupyterhub/systemdspawner
    # Configuration options defined ^
    extraConfig = ''
      c.SystemdSpawner.mem_limit = '2G'
      c.SystemdSpawner.cpu_limit = 1.0
    '';
    kernels = {
      python = {
        python3 = let
          env = (pkgs.python3.withPackages (pythonPackages: with pythonPackages; [
            # Necessary for use as a kernel
            ipykernel

            # Common Python Libraries
            numpy
            scipy
            scikit-learn
            pandas
            matplotlib
            seaborn

            # Neural Data Processing Libraries
            mne-python
            nibabel
            neo
            
            # Neurosimulators
            neuronpy
            nest
            brian2
          ]));
        in {
          displayName = "Python 3 for Computational Neuroscience";
          argv = [
            "${env.interpreter}"
            "-m"
            "ipykernel_launcher"
            "-f"
            "{connection_file}"
          ];
          language = "python";
          logo32 = "${env}/${env.sitePackages}/ipykernel/resources/logo-32x32.png";
          logo64 = "${env}/${env.sitePackages}/ipykernel/resources/logo-64x64.png";
        };
      };
    };
  };

  services.caddy.virtualHosts = {
    "jupyter.ws.kcnhub.com" = {
      extraConfig = ''
        reverse_proxy 127.0.0.1:${toString config.services.jupyterhub.port}
      '';           
    };
  };

}