My Qemu setup for Debian Bullseye (LTS - Aug 2026)
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qemu invocation:-
	qemu-system-x86_64 -enable-kvm -smp 4 --nographic -nic user,hostfwd=tcp::8022-:22 -m 2G -hdb repo-drive.img debian11.img

qemu-img invocation:-
	qemu-img create repo-drive.img 5G

make linux partition:-
	/sbin/fdisk repo-drive.img

to mount it:-
	mount -o loop,offset=1048576 repo-drive.img /mnt/repo

sbin/mke2fs:-
	maybe from debian11 rescue .. or maybe using losetup?

[ losetup -f -o 1048576 repo-drive.img; mke2fs /dev/loopX;
	losetup -d /dev/loopX ] where loopX is the assigned loop #


ssh from host (port 8022) to guest on port 22:-
	i.e. ssh [-X] -p 8022 isafam@localhost [X forwarding]