Feat: change sound server to pw-jack

Dockerfile

 
-FROM savonet/liquidsoap:v2.1.0
+FROM debian
 LABEL maintainer="David Trattnig <david.trattnig@subsquare.at>"
 
 ENV AURA_UID=2872
@@ -7,11 +7,19 @@ ENV AURA_GID=2872
 
 USER root
 
+# needed for pipewire, see docker-compose.yaml for more
+ENV XDG_RUNTIME_DIR=/tmp
+
 # Dependencies & Utils
 RUN apt update --allow-releaseinfo-change && \
       apt -y --no-install-recommends install \
       build-essential \
-      alsa-utils \
+      libpipewire-0.3-0 \
+      pipewire-jack \
+      # FIXME: dont install liquidsoap via apt
+      liquidsoap \
+      # only needed for ALSA?
+      # alsa-utils \
       libssl-dev
 
 # Setup Engine