Currently, we manually append the params to the url / query string using urljoin. Instead, we can send the query params in as a dictionary

Let tofu-optics users do this:

import tofu.optics.syntax.tupleN._

val lense = Tuple3._2[Int, String, Long]   // : Contains[(Int, String, Long), String]

tupleN object should contain all possible implicit extensions to Tuple{N} companion objects. Implementations should be macro generated.

Probably the best way would be to place the file in a directory compatible with XDG:

XDG_CONFIG_HOME with a default to $HOME/.config, then /spotify-next/config.json.