Feat: use savonet as base image

Dockerfile

 
-FROM debian
+FROM savonet/liquidsoap:v2.2.3
+ENTRYPOINT [ "/usr/bin/env" ]
+CMD ["bash"]
 LABEL maintainer="David Trattnig <david.trattnig@subsquare.at>"
 
 ENV AURA_UID=2872
@@ -12,15 +14,12 @@ ENV XDG_RUNTIME_DIR=/tmp
 
 # Dependencies & Utils
 RUN apt update --allow-releaseinfo-change && \
-      apt -y --no-install-recommends install \
+      apt -y  install \
       build-essential \
       libpipewire-0.3-0 \
       pipewire-jack \
-      # FIXME: dont install liquidsoap via apt
-      liquidsoap \
-      # only needed for ALSA?
-      # alsa-utils \
-      libssl-dev
+      libssl-dev \
+      sndfile-tools
 
 # Setup Engine
 ENV TZ=Europe/Vienna