{ lib
, pkgs
}:

(lib.makeScope pkgs.newScope (self:
  let
    # TODO: dependency-inject this.
    sane-data = import ../../modules/data { inherit lib; };
    template = self.callPackage ./template.nix;
  in lib.mapAttrs
    (name: feed-details: template {
      feedName = name;
      jsonPath = "modules/data/feeds/sources/${name}/default.json";
      inherit (feed-details) url;
    })
    sane-data.feeds
))