Unit tests, though-- not super common to write those for demo code, right?
Why not, you want the demo code to work, right?
Obviously it's better, but I'm not so sure it's common.
Whether it was for a feature or a demo, I like hearing about founders who turn into executives still coding and working on improving the code in their product.
Yeah, that's what I assumed. He probably just misses coding and decided to do something for a demo