Hey! thanks for the comment! that is and always have been on my agenda it's just that I need to finish implementing a few of the final core features first. It's so much easier to develop, test and fix things focusing on mac/pc first - and after having everything tested properly then begin to port for more lower power devices.
I also want to bring 4TRK to PI for the hope that people will try to build their own 'standalone' 4TRK devices :)
I think there are many in your situation, who would like to try it but specifically on a handheld - that's why I want to ensure the project have a solid foundation first!
Keep an eye out for updates, as for sure - as soon as I am ready I will let you know!