Maxima
Maxima, on the web, in the browser.
A guide to building an interpreter for your own language.
One day.... one day.
While most of the article is written as a joke, I've seen some of these "dark side" approaches for code reviews done by actual people who don't seem to want to use code review to lift everyone.
Saving this so I can relive the trauma.
Instagram scaled from 0 to 14 million users in just over a year, from October 2010 to December 2011. They did this with only 3 engineers.
They did this by following 3 key principles and having a reliable tech stack.