I’ve also been the recipient of absolutely no documentation.
Yeah, I took over for a guy who rage quit a year earlier, then his (hire the cheapest guy we can find) replacement basically didn't make any progress so they hired me. First question: where is this undocumented build server that took six years to build, physically? Answer: in this tower case here... Second question: when was it last backed up. Answer: ...turns pale and jogs over to IT.