[mynegation]

I remember he at some point had a landing page for a browser that would show you a web page in multiple resolutions, all at once, with hot reload. Not sure if this is the application, he might have had another one.

[bambax]

Yes, he made Sizzy, and it's apparently very successful. Here's the story (quite well told I think): https://kitze.io/posts/github-stars-wont-pay-your-rent