I've actually been working on a small side project related to open source finance, so this is super cool to see and I'm very excited to use it! This seems like a great tool for use in trading communities etc.
I think that using github-esque features feels like a good in-between from the crazy gamification of Robinhood vs old and sad UX you see at most old brokers.
Are you guys planning on adding options at any point and time, or the ability make more advanced strategies than a basket of stocks?
EDIT: You lose the share link as soon as you click away from the waitlist page, might wanna send an email with it after ppl sign up for the waitlist :)