gr-fosphor inside docker for people unable to install it.
./build
./run
This will open a gnuradio-companion
inside docker,
with a flowgraph containing a ZMQ SUB Source connected to tcp://127.0.0.1:35000
and a QT Fosphor Sink.
From your app, send samples to a ZMQ PUB Sink binded to tcp://127.0.0.1:35000
.