Welcome to the list!
At the moment there is the bare bones in place for the ui. It provides a sampler type of interface. The looping functionality is pulled from hydrogen so iiuc the code is working but it hasn't been integrated with the sampler ui.
If you have a midi device you should be able to play tracks but I'm not sure how that aspect works atm.
Perhaps Gabe can elaborate on that...
Cheers.
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Patrick Shirkey
Boost Hardware Ltd