There's a closed pull request on the void-packages repository

New package: pcem-17
https://github.com/void-linux/void-packages/pull/22340

Description:
PCem ~~v16~~ v17
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.