{
  config,
  elib,
  tflib,
  vars,
  config',
  ...
}: let
  inherit
    (elib)
    nfsVolume
    nomadJob
    ;
  inherit
    (tflib)
    tf
    ;
in {
  resource."nomad_volume"."hydra-db" = nfsVolume {
    volume_name = "hydra-db";
    access_mode = "single-node-writer";
    server = "blowhole.hosts.in.redalder.org";
    share = "/mnt/jimmy/infrastructure/hydra/postgresql";
    mount_flags = ["nfsvers=3" "hard" "async"];
  };

  resource."nomad_volume"."hydra-data" = nfsVolume {
    volume_name = "hydra-data";
    access_mode = "single-node-writer";
    server = "blowhole.hosts.in.redalder.org";
    share = "/mnt/kyle/infrastructure/hydra/data";
    mount_flags = ["nfsvers=3" "hard" "async"];
  };

  resource."nomad_volume"."hydra-nix" = nfsVolume {
    volume_name = "hydra-nix";
    access_mode = "single-node-writer";
    server = "blowhole.hosts.in.redalder.org";
    share = "/var/nfs/hydra-nix";
    mount_flags = ["nfsvers=3" "hard" "async"];
  };

  resource."vault_policy"."hydra-policy" = {
    name = "hydra-policy";
    policy = ''
      path "kv/data/cluster/hydra" {
        capabilities = ["read"]
      }
    '';
  };

  imports = [
    (elib.buildNixNGSystem {
      name = "hydra";
      hosts = [
        "blowhole.hosts.in.redalder.org"
      ];
    })
    (elib.buildNixNGSystem {
      name = "hydraPostgreSQL";
      hosts = [
        "blowhole.hosts.in.redalder.org"
      ];
    })
  ];

  resource."nomad_job"."hydra" = nomadJob {
    jobspec = ./job.hcl;

    vars = {
      flake_ref = "unused";
      flake_sha = "unused";
      store_path = builtins.toJSON {
        hydra = tf "data.external.nixng-system-hydra.result.out";
        postgresql = tf "data.external.nixng-system-hydraPostgreSQL.result.out";
      };
    };

    depends_on = [
      "terraform_data.nixng-system-hydra-copy"
      "terraform_data.nixng-system-hydraPostgreSQL-copy"
    ];
  };
}