Hi Mike, dosemu is in the archive and snapshot. Rather long links I'm afraid!
http://archive.debian.org/debian-archive/debian/pool/contrib/d/dosemu/dosemu_1.4.0.7+20130105+b028d3f-2+b1_amd64.deb https://snapshot.debian.org/archive/debian-archive/20240331T102506Z/debian/pool/contrib/d/dosemu/dosemu_1.4.0.7%2B20130105%2Bb028d3f-2%2Bb1_amd64.deb I installed the archive version in Trixie, and it seems to be working. No problems with dependencies. Regards, Peter