host-environment.nix

{ lib, ... }:

{
  options = {

    host.uid = lib.mkOption {
      type = lib.types.int;
      description = ''
        The numeric user id (UID) of the user running arion.

        This lets you to write modules that interact with the host
        user's files, which is helpful for local development, but not
        intended for production-like deployment scenarios.
      '';
    };

    host.nixStorePrefix = lib.mkOption {
      type = lib.types.str;
      default = "";
      example = "/mnt/foo";
      description = ''
        Prefixes store paths on the host, allowing the Nix store to be
        stored at an alternate location without altering the format of
        store paths.

        For example: instead of mounting the host's `/nix/store` as the
        container's `/nix/store`, this will mount `/mnt/foo/nix/store`
        as the container's `/nix/store`.
      '';
    };

  };
}