Evan Wallace basically said screw it, I'm writing a custom WebGL renderer and multiplayer protocol, when everyone else was slapping together existing libraries.
Most of us would have built a janky Electron app and called it a day. Instead they went nuclear on performance because that WAS their product differentiation.
Hasn't he all but washed his hands of Figma? I have a hard time being interested in something that has such a painful freemium tier, tries to merge with Adobe, and trademarked "Dev Mode".
