i learned about catt in this thread and i never used it, so i may be wrong about something, but these should be the main differences:

- they use a different protocol for device discovery, catt uses mDNS, ytcast uses DIAL.

- catt requires a chromecast to work, ytcast should work with any DIAL enabled device that supports the YouTube on TV app.

- catt can cast from many sources including local files, ytcast merely "tells" the YouTube on TV app to play videos, so it's limited to YouTube.

Cool, thanks for the explanation. I'll give your project a spin.