PCem
https://pcem-emulator.co.uk
This should be included in the repository since it offers a means to emulate older x86 PCs for running older software easily, with emulated hardware.
Is it Open Source? Yes
How many users do you anticipate will use this software? Several
Link to tarball: https://pcem-emulator.co.uk/files/PCemV13.1Linux.tar.gz
Certainly. I use PCem to emulate a Pentium 90 PC running Windows 95. What makes this emulator more useful than others like VirtualBox is the capability of emulating 3Dfx Voodoo cards. It's great for running old games that way.
Another example is the capability to run *very* old versions of OS/2 and Windows NT for business software not compatible with newer OSes, and with the ability to use video drivers that support for color depths and resolutions over the bog standard 640x480 16 color VGA mode.
This has sat in accepted for inclusion for 6 months now. Clearly, there is a lack of demand for the inclusion of this software, nobody has stepped up to provide a patch, maintain it, and properly integrate it. Closing as a result. Feel free to reopen but only when someone offers a patch via our proper patch submission methods and volunteers to be maintainer.