This is a reimplementation of https://lazyppl.bitbucket.io/ heavily drived from
the original source (https://bitbucket.org/lazyppl/lazyppl-src) and publication¹.
It has significantly less dependencies.

1: Paquet, Hugo, and Sam Staton. "LazyPPL: laziness and types in non-parametric probabilistic programs." Advances in Programming Languages and Neurosymbolic Systems Workshop. 2021.