Xoshiro
public struct Xoshiro : RandomNumberGenerator
Random number generator that can be initialized with a seed value. Copied from https://github.com/mattgallagher/CwlUtils/blob/master/Sources/CwlUtils/CwlRandom.swift
The idea here is that this RNG is seeded with a user’s userID, and will always produce the same sequence of numbers when building a user’s identicon..