I added serverside [keyset pagination](https://stackoverflow.com/a/70520457) for the `/calls` route in #2 using [Paginator](https://hexdocs.pm/paginator/readme.html). The following routes have not yet been changed: - [ ] `/transmitters` - [ ] `/users` - [ ] `/rubrics` - [ ] `/subscribers` - [ ] `/nodes` The approach used in `/calls` won't work for routes using CouchDB as database. Luckily, CouchDB does have [documentation on that matter](http://guide.couchdb.org/draft/recipes.html#fast) A way to apply a filter is also necessary, perhaps through an additional `WHERE` clause.