What are you building in trading/fintech? Drop it below - I'll start

Curious what else is out there in this space, and figured this could be a useful thread for anyone building something trading/fintech-adjacent.

I'll go first: I'm building RichGoon, automates backtested trading strategies on your own broker instead of manually executing trades.
Built it after blowing a few accounts trading manually myself - one of the strategies on it has since helped users pass real prop firm evaluations (240 trades, 93.3% win rate, full trade log public, not a screenshot).

Launching on PH Sept 22.
https://www.richgoon.app/

What are you working on? Trading tools, fintech, anything adjacent - drop it below, genuinely curious what people are building here.