Modern chatroulette app open source

Im doing this project open source https://github.com/LorenzoTinfena/chat-and-meet-server
https://github.com/LorenzoTinfena/chat-and-meet-client

Server in go, client in flutter, with grpc protocol for APIs, im not good in frontend and i don't like it, but I wanted to do this open source project cause most chatroulette app don't offer the possibility to choose age, gender, ecc. (maybe for payment).
the main purpose when it will (if it will) be published, is to let every possible service free for everyone