Add sys-nice request to docker compose file and comment out unnecessary stuff.

docker/docker-compose.yaml

@@ -5,20 +5,22 @@ services:
     image: mikebrady/shairport-sync:latest
     network_mode: host  # Required for AirPlay 2
     restart: unless-stopped
+    cap_add:
+      - SYS_NICE
     # environment:
     #  PULSE_SERVER: unix:/tmp/pulseaudio.socket # Path for PulseAudio socket
     #  PULSE_COOKIE: /tmp/pulseaudio.cookie # Path for PulseAudio cookie
     #  XDG_RUNTIME_DIR: /tmp # Path for pipewire
     #  ENABLE_AVAHI: 0 # Disable DBus and Avahi daemon inside the container
     devices:
-      - "/dev/snd" # ALSA device, omit if using PulseAudio
+      - "/dev/snd" # For access to ALSA devices-- unnecessary unless you are outputting to an ALSA hardware device
     # volumes:
     #   - ./volumes/shairport-sync/shairport-sync.conf:/etc/shairport-sync.conf # Customised Shairport Sync configuration file.
     #   - /run/user/1000/pulse/native:/tmp/pulseaudio.socket # PulseAudio socket when using that backend
     #   - /run/user/1000/pipewire-0:/tmp/pipewire-0 # Pipewire socket when using pipewire
     #   - /var/run/dbus:/var/run/dbus # DBus when ENABLE_AVAHI set to 0
     #   - /var/run/avahi-daemon:/var/run/avahi-daemon # Avahi socket when ENABLE_AVAHI set to 0
-    # command: -o pw # You can specify the desired output with command:
+    # command: -o pipewire # Add any options for Shairport Sync here, e.g. output backend PipeWire
     logging:
       options:
         max-size: "200k"