Soul of a New Machine and Showstopper are very much cut from the same cloth.

For anyone interested, we did a Command Line Heroes podcast episode on Soul of a New Machine a few years back. https://www.redhat.com/en/command-line-heroes/season-4/minic...

I was actually interviewed for the episode but I got left on the cutting room floor because we were able to arrange more interviews with people directly involved whereas I was just second-hand.