New comment by Vaelatern on void-packages repository

https://github.com/void-linux/void-packages/issues/24488#issuecomment-680976457

Comment:
Not the relevant license. It's custom GPL-2.0.

Seems it's `build_style=cmake`

At this point, you can, if you like, give packaging a go (it's not too hard), or wait for someone to come along and make the package for you.