I met him in a few conferences, back in the day. We ended up talking more about linguistics than Unix history, somehow.
Tangent, but: is anyone doing comparable oral-history work for the current LLM moment? It feels like a lot of it is going to survive only as scattered blog posts and conference talks, and I don't know who's playing the role Salus did for Unix.
I found at least 1 copy in the Internet Archive.
https://archive.org/details/aquartercenturyofunixpeterh.salu...
The cover looks redacted, as the "Sex, Drugs" from "Sex, Drugs, Unix" was removed. Hopefully the content wasn't censored as well.