Debian 12 (bookworm) image testing (v1.5-dev)

After extensive testing, I believe everything is working except for one existing bug that was never previously discovered/reported.

I’ve opened a bug report on this, and given the the amount of work involved in fixing that bug, I propose we leave this bug out of the v1.5-dev release and tackle it later.

With that disclaimer in place, I think we’re ready for what I hope will be final testing of v1.5-dev! Image link below: