{
  config,
  options,
  lib,
  ...
}:
let
  inherit (lib)
    mkOption
    types
    ;
  cfg = config;
in
{
  content-types.article =
    { config, collection, ... }:
    {
      imports = [ cfg.content-types.page ];
      options = {
        collection = mkOption {
          description = "Collection this article belongs to";
          type = options.collections.type.nestedTypes.elemType;
          default = collection;
        };
        date = mkOption {
          description = "Publication date";
          type = with types; str;
          default = null;
        };
        author = mkOption {
          description = "Page author";
          type = with types; either str (nonEmptyListOf str);
          default = null;
        };
      };
      config.name = with lib; mkDefault (slug config.title);
      config.outputs.html = lib.mkForce (
        (cfg.templates.html.page config).override (
          _final: prev: {
            html = {
              # TODO: make authors always a list
              head.meta.authors = if lib.isList config.author then config.author else [ config.author ];
              body.content =
                with lib;
                map (
                  e:
                  if isAttrs e && e ? section then
                    recursiveUpdate e {
                      section.heading = {
                        before = [ { p.content = "Published ${config.date}"; } ];
                        after = [ { p.content = "Written by ${config.author}"; } ];
                      };
                    }
                  else
                    e
                ) prev.html.body.content;
            };
          }
        )
      );
    };
}