Wired did a great video profile of him a few years ago.
https://www.youtube.com/watch?v=1uNpjqH-mQQ
I admire that he defended against incremental competitors by having quantum improvements in his library. Looks like he had no challengers so he elected to release at least one big improvement in heat.
Nile Red shows how to use the underknown Soxhlet extractor to make nearly pure capsaicin oil at home. Assuming of course that home has a fume hood, safety equipment, a rotary evaporator, and a Soxhlet extractor.