> James, the Co-Founder and CTO of Heroku, coined the term 12 factor app

That would be Adam Wiggins, not James Lindenbaum, who published the 12 Factor App :) I know this because I was there when it happened, but also if you check the bottom of the 12 Factor website it’s quite clear:

> Written by Adam Wiggins

Also, this is not at all accurate:

> GitHub (formerly hosted on Heroku)

GitHub used Heroku for some stuff back then (like their original status site) but they absolutely never ran the core of GitHub on Heroku.