{ pkgs, lib, ... }: {
  services.postgresql = {
    enable = true;
    package = pkgs.postgresql_10;
    enableTCPIP = true;

    authentication = lib.mkForce ''
      # Generated file; do not edit!
      # TYPE  DATABASE        USER            ADDRESS                 METHOD
      local   all             all                                     trust
      host    all             all             127.0.0.1/32            trust
      host    all             all             ::1/128                 trust
    '';
  };
}