Are you sure? According to Wikipedia[1] "its server-side code is closed-sourced and proprietary". [1] https://en.m.wikipedia.org/wiki/Telegram_(software) http

Are you sure? According to Wikipedia[1] "its server-side code is closed-sourced and proprietary". [1] https://en.m.wikipedia.org/wiki/Telegram_(software) https://en.m.wikipedia.org/wiki/Telegram_(software)