leestaples/snapcast-server-udm repository overview

⁠Run Synchronous audio player cast server on UDM

⁠Features

1. Run SnapCast server on your UDM, using debian container. https://github.com/badaix/snapcast⁠

2. Avahi and Dbus enabled installed for zeroconf

3. Mplayer install to stream audio

   Future version to expose http and enable client connection from AirPort/DLNA

⁠Requirements

1. You have already setup the on boot script described here⁠

⁠Customization

• You will need to configure internet stream source in snapserver.conf defaults to: stream = pipe:///tmp/snapfifo?name=default For example to stream your favorite dnbradio.com stream = process:///usr/bin/mplayer?name=dnbradio&params= http://source.dnbradio.com:10128/dnbradio_main.mp3⁠ -really-quiet -novideo -channels 2 -srate 48000 -af format=s16le -ao pcm:file=/dev/stdout -cache 1000
• Customise Dockfile to add alternate sources.

⁠Docker

The official repo is lee.staples/snapcast-server-udm. Latest will always refer to the latest builds, there are also tags for each snapcast-server-udm release (e.g. 1.0.0).

The Dockerfile is included, you can build it locally on your UDM if you don't want to pull from Docker Hub or make customizations

podman build . -t snapcast-server-udm:latest

Building from another device is possible. You must have buildx⁠ and qemu-static-user installed to do cross platform builds. This is useful if you want to mirror to a private repo

docker buildx build --platform linux/arm64/v8 -t snapcast-server-udm:latest .

⁠Steps

1. Copy 20-br0.conflist⁠ to /mnt/data/podman/cni this will create your podman network bridge to br0 requre CNI dhcp daemon to query network attached DHCP servers, update its values to reflect your environment.
2. Copy 10-snapcast.sh⁠ to /mnt/data/on_boot.d and update its values to reflect your environment.
3. Execute /mnt/data/on_boot.d/10-snapcast.sh⁠
4. Create /mnt/data/snapcast-server, copy snapserver.conf⁠ and touch server.json⁠
5. Run the snapcast-server docker container. Mounting configuration/settings files and selecting bridged network.

    podman run --detach --name snapcast-server --hostname snapcast-server --net br0 \
       --volume /mnt/data/snapcast-server/snapserver.conf:/etc/snapserver.conf \
       --volume /mnt/data/snapcast-server/server.json:/var/lib/snapserver/server.json \
       leestaples/snapcast-server-udm:latest
   

   Copy
6. Connect clients and listen to synchronous audio playback.