The IndiaFOSS conference discussion groups were all on Telegram. The main FOSSUnited group chat is also hosted on Telegram.
Setting up a public chat using Matrix might enable more people to join and participate in the discussions. The matrix chat could then be bridged to Telegram as well so that those who don’t use Matrix (yet) could still participate using their telegram accounts.
@Nemo, if I am not mistaken, you cannot run your bridges on the matrix.org instance.
Also I had run a matrix instance for my friends group for a year and i can help if you face any issues! I highly recommend using the ansible playbook. If you need to host multiple serivices on that server, you can use your own nginx server instead of the one that comes with the playbook (which is what i did)!
We have created a matrix space -https://matrix.to/#/#fossunited:matrix.org for discussion. But with recent updates in Telegram (topic-wise discussion), a few volunteers said that the bridge could be difficult to build.