If you're looking at manpages on some UNIX derivates (non-GNU), `troff` might be involved. AFAIK, that would very much qualify, even though the main reason mig

If you're looking at manpages on some UNIX derivates (non-GNU), `troff` might be involved. AFAIK, that would very much qualify, even though the main reason might be that no one was able to decipher its code… It looks like you can find a mirror of the Plan9 source for troff here: https://github.com/hollingberry/troff https://github.com/hollingberry/troff