euxo pipefail

this will hereby hopefully join, in my brain, netstat’s tulpn and ps’s aux:

#!/bin/bash
set -euxo pipefail

-e — exit immediately when one command fails
-u — fail on undefined vars
-o pipefail — fail if a pipe fails
-x — be very very verbose

AirPlay on raspi

RPiPlay

An open-source implementation of an AirPlay mirroring server for the Raspberry Pi. The goal is to make it run smoothly even on a Raspberry Pi Zero.
Screen mirroring and audio works for iOS 9 or newer. […]
Both audio and video work fine on a Raspberry Pi 3B+ and a Raspberry Pi Zero, though playback is a bit smoother on the 3B+.

TODO: compare to shairplay