What are the requirements to begin developing/implementing Auracast?

I've been tasked with studying adding Auracast to an application. One fundamental thing I can't get my head around is what is the s/w requirement - i.e. do I need 3rd party protocol stacks, or is Nordic's SDK & DK ready to go? Specifically, I need the SoC to run a GATT service and provide a concurrent mono audio stream (transmit).

The sales literature is pretty vague in this respect:

"The nRF5340 SoC supports an extensive range of wireless protocols. It supports Bluetooth Low Energy and is capable of all angle-of-arrival (AoA) and angle-of-departure (AoD) roles in Bluetooth Direction Finding. In addition, it supports LE Audio, high-throughput 2 Mbps, Advertising Extensions and Long Range. Mesh protocols like Bluetooth mesh, Thread and Zigbee can be run concurrently with Bluetooth LE, enabling smartphones to provision, commission, configure and control mesh nodes. NFC, ANT, 802.15.4 and 2.4 GHz proprietary protocols are also supported.

The nRF Connect SDK is the software development kit for the nRF5340 SoC, offering a complete solution that integrates the Zephyr RTOS, protocol stacks, application samples and hardware drivers."

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