I built WorldCanvas: one shared online canvas where anyone can claim a 20×20 px square for $1 and put their own picture on it. It's a take on the 2005 Million Dollar Homepage, but for people's pictures instead of ads. This post is about how it works under the hood.
Source: [Dev.to](https://dev.to/__da15af/building-a-1-per-square-world-canvas-on-netlify-functions-supabase-316n)