JRicoC,
Glad you worked this out.
The performance is a bit slow with the Pi Zero based streamer but Volumio is a great solution.
As soon as the supply of Zero 2Ws eases up, I plan to upgrade my Mini Allo.
Based on my current, everyday driver - a Zero2W connected to a Topping D30 Pro via USB, driving an Audiophonics S400 Purifi amp, the 2W streamer works really well: it is responsive, unobtrusive, energy efficient and sounds great. I’m sure an Allo Zero 2W will be a great solution as well.
Enjoy your new streamer!