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

https://github.com/abenson/void-packages nvidia390.129
https://github.com/void-linux/void-packages/pull/14574

nvidia390: update to 390.129.
Need some testers! I don't have i686 with nvidia to test on.

A patch file from https://github.com/void-linux/void-packages/pull/14574.patch is attached