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

https://github.com/tibequadorian/void-packages mesa-demos
https://github.com/void-linux/void-packages/pull/27933

mesa-demos: fix DEMOS_DATA_DIR
This fixes an issue in which some programs for example `fire` would not start because of missing files.

A patch file from https://github.com/void-linux/void-packages/pull/27933.patch is attached