I need to create messaging app using this https://github.com/tinode/ios . But there are too many bugs and I can’t understand any logic of app. Which things I must learn to make it work? I already connected client to our own server. Working app must be ready in 2 weeks, app should send messages and be able to create secret chats with encryption. Before I only tried to make to-do list app. We already have working android and web version. Firebase is not a solution - I need to use our own server.
I’m asking for advices from experienced iOS developers.