NixOS systemd service with python

thermonitor.nix

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

let
  python = pkgs.python3Packages.python;
in
{
  systemd.services.thermonitor = {
    description = "Thermonitor Daemon";
    serviceConfig = {
      ExecStart = "/home/phi/thermonitor.py";
      Restart = "on-failure";
    };
    wantedBy = [ "multi-user.target" ];
    after = [ "network.target" ];
    environment.systemPackages = [ python ];
  };

  systemd.services.thermonitor.enable = true;
}