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

https://github.com/Johnnynator/void-packages qt6
https://github.com/void-linux/void-packages/pull/27349

[WIP] New packages: qt6
TOOD:
- [ ] Address TODOs
- [ ] link against system libressl instead of vendored OpenSSL

A patch file from https://github.com/void-linux/void-packages/pull/27349.patch is attached