I have several RPi's 3, 3+ and 4 running with an Hifi berry hat, mostly running eighter Kodi or PiCore Player. Two of them are with a touchscreen and with PINN you can create a multiboot and select te os to use. If I want to stream music I now have to install Raspbian and squeezbox plugin, since PiCore Player had not been updated for the RPi 3+ and 4 to support PINN.
This OS is way more advanced and it's o great you can tune the sound!! It would be perfect to use in a multiboot scenario....
Integrate HiFiBerry OS in PINN ?