Voice chat for a gaming community, a podcast crew, or a distributed team stops depending on someone else's platform once you run your own Mumble server. The Murmur server hosts channels where hundreds of users can talk at once with latency low enough for competitive play, and every conversation is encrypted in transit with certificate-based authentication for identities. Administrators shape access with a detailed permission system: channels can be public, password-gated, or arranged so two groups stay separate while their leaders can speak to both. Users get positional audio in supported games, an in-game overlay showing who is talking, a multi-channel recorder for podcast production, and a public server browser for finding communities. The server side is built for automation: the Ice middleware interface exposes user and channel management to scripts, authenticator modules check logins against existing account databases, and community web interfaces and channel viewers plug into the same API. Running the server is light on resources, and regulars can register their identity once and be recognized across visits without passwords. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. BSD-3-Clause licensed.