nixpkgs/nixos/modules/services/networking/umurmur.md

uMurmur

uMurmur is a minimalistic Mumble server primarily targeted to run on embedded computers. This module enables it (umurmurd).

Quick Start

{
  services.umurmur = {
    enable = true;
    openFirewall = true;
    settings = {
      port = 7365;
      channels = [
        {
          name = "root";
          parent = "";
          description = "Root channel. No entry.";
          noenter = true;
        }
        {
          name = "lobby";
          parent = "root";
          description = "Lobby channel";
        }
      ];
      default_channel = "lobby";
    };
  };
}

See a full configuration in umurmur.conf.example