There was another approach to the same problem posted on HN just yesterday[0], which took a very different route! Very interesting to compare/contrast the two appraches. That one doesn't do video, just gets you a terminal. (Not sure if it would let you mess with the BIOS or install a new OS like this one does? Not familiar enough with serial ports to assess.)
But anyway, TinyPilot is super cool! I'd love to get it set up one day. And the "life story" as to how it came to be was really neat, and made me feel like I understood the whole solution. Great article!