Shairport is a utility for emulating the functionality of an AirPort Express on a linux box. However, since it has been created by reverse-engineering Apple's key used in its AirPort Express, be advised that the functionality may be removed at Apple's discretion.
Shairport is available in the AUR through three different packages:
The third package provides ready made systemd scripts and hence comes recommended. It is also recommended to install the packagein order to prevent the daemon from giving warnings about the unavailability of inet6 and also for compatibility with iTunes.
The configuration is managed by the perl script /usr/bin/shairport.pl. For novice users, the defaults should be left as is, unless they wish to set a password for the AirPlay server. In this case, they should change line 56 from
my $password = ''; to
my $password = '<yourpassword>'; where <yourpassword> is to be replaced by the password of your choice.
For starting the service, simply issue the command:
#systemctl start shairport@<nameofserver>.service
where <nameofserver> can be any name of your choice. While it has not been tested, it would be good if the name avoided any special characters. For automatically starting the service at launch, issue the command:
#systemctl enable shairport@<nameofserver>.service
The result should be an AirPort station by the name <nameofserver> which should be able to accept output from any Apple product.