Hello, thanks to @Dan_Knight (I had sent my request to him) and the Allo team the Sparky SBC is another transport that supports native DSD via the X-SPDIF 2. I have updated the kernel of my DietPi version 159 by following @rahulkc_s in here. The next version of DietPi should have implemented the native support I guess.
Now I am waiting for my (new) USBridge HAT and then deciding if purchasing a Matrix X-Pro or Holo Cyan DSD… scratching my head
