Should this nickname be persistent or do you have a scenario in mind in which these nicknames apply to one server-session only.
In the latter case I think it would be almost trivial to implement this 🤔

Would be saved client-side only and for one specific client(identified from cert) only.

So persistence based on a certain certificate.

Hm, I don't even know right now whether a client will have access to another clients certificate. Though I think I read somewhere that one can view other user's certificates...
If this is the case, this should still be more or less easy to implement.

I would like to work on this. Everyone should have unique nicknames, is that correct?
I am a beginner on this , so looking forward to work on it.

@Vipulsh I dont think that would be mandatory, as many people just name them after real life names(and thus there can be people having the same name).

@Vipulsh very good to hear you are willing to take up the task 👍

Users are identified by an ID which is an integer that is assigned to them by the server. The user name is for displaying purposes only so there's no need for them to be unique.

I think it might be best if you were to join our IRC channel via matrix (https://riot.im/app/#/room/#mumble:matrix.org). That's often times the best place to discuss implementation details :)
If you don't want to it'd be also fine to do the discussion on this issue though.

If you need anything else, please let me know :D

@Krzmbrzl @nifker Thanks for the updates . I'll surely be joining the channel to discuss it further. Meanwhile, I'll go through the code and see what changes I can make.