Apologies for the slow development time, but I’ve been running pretty hot at work and need time away from the screen 
If you’re curious to give these branches a shot, you’ll have too SSH into Norns and then run the following.
For the branch with just the PolyPerc Engine implemented run:
$ cd ~/dust/code
$ git clone --single-branch --branch feature-poly-engine https://github.com/frederickk/orca/ orca-feature-poly-engine
For the branch with the WIP Multi-Engine (PolyPerc, Passersby, FM7) implemented run:
$ cd ~/dust/code
$ git clone --single-branch --branch feature-multiple-engine https://github.com/frederickk/orca/ orca-feature-multiple-engine
For this branch refer to the README to understand the command changes.