import Metalsmith from "metalsmith"
import collections from "metalsmith-collections"
import rss from "metalsmith-rss"

new Metalsmith("./")
  .use(
    collections({
      //...
    })
  )
  .use(
    rss({
      feedOptions: {
        title: "test",
        site_url: "http://test.test",
      },
    })
  )
  .build(err => {if (err) {throw err}})