Just a NAS and a laptop on the ethernet would work?
Yes, anything that will run Audirvana II or Jriver.
The Bricasti webpage shows DLNA and specifically calls out Jriver and Audirvana II. This is not Roon ready. Maybe they have another Ethernet interface that is not DLNA?
Like USB, all Ethernet interfaces are not equal by a long shot, and the best performance will be the Ethernet interface inside the DAC with I2S bus directly to the D/A chip or logic.
Steve N.
Empirical Audio