There is a new pull request by ericonr against master on the void-packages repository

https://github.com/ericonr/void-packages wayfire
https://github.com/void-linux/void-packages/pull/25264

wayfire: add image build option, session file.
The session file used by display managers isn't installed by the build
system.

Closes #25260 

A patch file from https://github.com/void-linux/void-packages/pull/25264.patch is attached