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

https://github.com/dkwo/void-packages trans
https://github.com/void-linux/void-packages/pull/49505

transmission: build with qt6
- I built this PR locally for my native architecture, (x86_64)

A patch file from https://github.com/void-linux/void-packages/pull/49505.patch is attached