Next Personal Project – multi-messenger – would like some tips and recommendations on how to start

Howdy,

I'm currently looking to build my own multi-messenger app. The current channels I would like to integrate with are Google Hangouts, FB Messenger, and Discord. I want to get some idea on how to start working on this project. Should I try to iframe/embed these chat applications in my app or look into the APIs and build my own chat window? Is there a Github repo that is a great starting point?

I want to build something like these apps:

– https://www.microsoft.com/en-us/p/multi-messenger/9nblggh4vlr4?activetab=pivot:overviewtab

– https://chrome.google.com/webstore/detail/whatsgreen-multi–messenge/emipoepfakonicaobeeejombhfkbicld?hl=en

– https://meetfranz.com/