Hey, I built a crypto screener! It currently tracks over 400 cryptocurrencies, with plans to expand to 10,000. 
It’s got powerful filtering, technical indicator calculations, and saves your search history. I used F# and TypeScript – everything runs on the server, so it's super fast. 
It's part of a bigger backtesting platform I’m working on.  I'd love your feedback on the user experience and what other screening options you'd find helpful. Check it out here: [https://cryptoquant.dev/instruments/