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

https://github.com/ScrelliCopter/void-packages pcem
https://github.com/void-linux/void-packages/pull/22340

[WIP] New package: pcem-16
PCem v16
http://pcem-emulator.co.uk/

Real BIOS ROM images placed in `~/.pcem/roms/` are required to boot, some freebies are available at the Downloads section of the PCem homepage.

A patch file from https://github.com/void-linux/void-packages/pull/22340.patch is attached