This looks like really promising software. I was trying out GNU radio and some external software before, but it failed since it needed better S/N to decode.
Your software seems awesome! I haven't tried it yet, but may I provide you with my wish list? 
* Pluto SDR support (either native support or via GNU radio I/Q stream, UDP, etc)
* UDP input for I/Q
* Support for recorded I/Q streams in WAV-format. That way users can test out with recorded I/Q streams.
Will test your software as soon as possible! Thanks for sharing it!