I hope not to be OT, but can you reference links that address DIY implementations like these with a tutorial approach or step-by-step guide?
I have only found things like “you will simply need a X volt supply board, an isolator board, a XYZ_FIFO board…”
I have always wondered if these come with datasheets/connection schemas or if getting those I would be left with “well, now what?”
And I also don’t know if these boards may have compatibility issues with Volumio or if that only happens with DACs and their supported streaming decoding options.