testing various configs without success

Dockerfile

@@ -6,15 +6,23 @@ RUN apt-get install -y build-essential
 RUN apt-get install -y curl
 RUN apt-get install -y python-minimal
 RUN curl -sL https://deb.nodesource.com/setup_8.x | bash
+#needed for npm
 RUN apt-get install -y nodejs
 
 WORKDIR /simulator
 ADD . /simulator
 
+RUN rm package-lock.json && rm -rf node_modules && rm -rf ~/.node-gyp
+
+
 RUN apt-get install -y libasound2-dev
 RUN npm i -g node-gyp
 RUN apt install -y alsa-base pulseaudio
+RUN apt-get install -y avahi-utils
+RUN apt-get install -y alsa-utils
+# RUN modprobe snd_bcm2835
 
 RUN npm install --unsafe-perm
+RUN export "PULSE_SERVER=unix:/path/to/pulseaudio/socket"
 
 # docker run -it -v /tmp/.X11-unix:/tmp/.X11-unix -e DISPLAY=unix$DISPLAY --device /dev/snd