I made a livecoding site for playing around with Orca, alongside a tutorial of sorts. It's already patched to a synthesizer so it's ready to go, and has examples/tutorials you can load.
Granted I don't work at Splunk anymore, but did recently. They were definitely working hard on migrating everything to python3, and if I remember, they had a planned roll out where python2/python3 would co-exist.