Spotify
Spotify is a commercial music streaming service.
Installation
To install the standard Spotify desktop application, add to system packages:
environment.systemPackages = with pkgs; [ spotify ];
Local discovery
To sync local tracks from your filesystem with mobile devices in the same network, you need to open port 57621 by adding the following line to your configuration.nix:
networking.firewall.allowedTCPPorts = [ 57621 ];
In order to enable discovery of Google Cast devices (and possibly other Spotify Connect devices) in the same network by the Spotify app, you need to open UDP port 5353 by adding the following line to your configuration.nix:
networking.firewall.allowedUDPPorts = [ 5353 ];
spotifyd
The alternative client spotifyd is available as a package, nixos module, and home-manager module.
spotifyd must have your credentials when it starts, otherwise it will not be able to authenticate with Spotify, and will not show up as a device. If installing spotifyd as a package, give it credentials when starting, e.g.:
spotifyd --username <USER> --password <PASS>
If installing spotifyd as a systemd service via home-manager, you can supply your credentials via options. Example home-manager config:
services.spotifyd = { enable = true; settings = { global = { username = "Alex"; password = "foo"; }; } ; }
spotifyd connects to spotify as a spotify-connect device. It offers no controls of its own, but can be controlled via playerctl or spotify-tui.