I meant the OP more as a lament about it being hard rather than a quip about it being easy.

Though upon reflection it’s not the voice chat that’s a problem, it’s the fact that Discord is a lot of things, a chatroom, a VOIP service, and so on, and recreating all those things on top bolting on federation (which I don’t see as a desirable feature in this case) is what makes it so hard.