* Build instructions are different from previous versions of Shairport Sync. Please read carefully.
* This code is experimental and much of the normal functionality of Shairport Sync is broken. Please do not use it in situations where reliable service is expected.
* Be especially careful with audio systems capable of very high volume output -- the volume control in this software may not be reliable!
-* for the moment, leave the settings in the configuration file at default except as noted below.
+* For now, leave the settings in the configuration file at default except as noted below.
* At the time of writing, May 2, 2021, everything is on the latest version of the software -- macOS 11.3, iOS 14.5, Raspberry Pi OS 5.10.17-v7l+ (Buster), Ubuntu 20.04 -- fully updated.
* Shairport Sync relies on a program called [`nqptp`](https://github.com/mikebrady/nqptp) to monitor timing signals. This program uses ports 319 and 320 and replaces any PTP service you have on the computer.
In addition, `nqptp` must run with `root` privileges.