Mostly because I’m an idiot, but at least I had a backup in hand.
the debs are kpe tin /var/cache/apt/archives
So a simple script like this:
ls -l *.deb | awk '{print $9}' | sed -e 's/_/\ /g' | awk '{print "apt-get install "$1}' > /tmp/missing
Will go ahead and prep a simple script to re-add everything. Obviously I don’t pass it into a sudo’d bash, but heh it works.
Probably one of my quicker recoveries, since I had all the data & config’s just lost the OS.