There is an updated pull request by dkwo against master on the void-packages repository

https://github.com/dkwo/void-packages pypy
https://github.com/void-linux/void-packages/pull/33712

new package: pypy3.7
I've tested it a bit on `x86_64`.
It is mostly taken from #8861, let me know if there's still interest to merge it in Void.

A patch file from https://github.com/void-linux/void-packages/pull/33712.patch is attached