CoriolisOpen Press’s Black Books was nice series, I am still looking for links for soft copies :-) Specially its linux code commentary, so if you or any one else has link please provide it.
I did edit one of the Coriolis "black books;" I cannot fathom that it's still useful, but I guess some copies are still around. https://amzn.to/3CeFwwM
More to the point, I'm good friends with Coriolis' Jeff Duntemann. He lives about a mile away from me, and comes to Thanksgiving dinner at my house. Coriolis was WONDERFUL to work with, as writer, editor, anything. Marvelous people. I miss that business.