A similar RNG is Rust's StepRNG[1], which simply emits a sequence of u64
values. (I like `trivial` better, because it can be used to store
entropic data for seeding with gradual degradation when there is not
enough stored data.)

[1]:
https://cseweb.ucsd.edu/classes/sp22/cse223B-a/tribbler/rand/rngs/mock/struct.StepRng.html

-- Peter McGoron