georg: enable spotifyd

hosts/georg/configuration.nix

@@ -7,6 +7,7 @@
       ../../misc/metrics-exporters.nix
 
       ../../modules/grzegorz.nix
+      ../../modules/spotifyd.nix
     ];
 
   boot.loader.systemd-boot.enable = true;

modules/spotifyd.nix

@@ -0,0 +1,44 @@
+{ lib, config, ... }:
+
+{
+
+  services.spotifyd.enable = true;
+  # https://docs.spotifyd.rs/config/File.html
+  services.spotifyd.settings = {
+    device_name = "${config.networking.hostName}-spotifyd";
+    device_type = "t_v"; # in ["unknown" "computer" "tablet" "smartphone" "speaker" "t_v"],
+    bitrate = 160; # in [96 160 320]
+    volume_normalisation = true;
+    zeroconf_port = 44677; # instead of user/password
+
+    # this is the place you add blinkenlights
+    #on_song_change_hook = "rm -rf / --no-preserve-root";
+  };
+
+  systemd.services.spotifyd.serviceConfig = {
+    SupplementaryGroups = [
+      "audio"
+      "pipewire"
+    ];
+  };
+
+  services.avahi.enable = true;
+  services.avahi.publish.enable = true;
+  services.avahi.publish.addresses = true;
+  services.avahi.publish.domain = true;
+  services.avahi.extraServiceFiles.spotifyd = ''
+    <?xml version="1.0" standalone='no'?><!--*-nxml-*-->
+    <!DOCTYPE service-group SYSTEM "avahi-service.dtd">
+    <service-group>
+      <name replace-wildcards="yes">%h</name>
+      <service>
+        <type>_spotify-connect._tcp</type>
+        <port>${builtins.toString config.services.spotifyd.settings.zeroconf_port}</port>
+      </service>
+    </service-group>
+  '';
+
+  networking.firewall.allowedTCPPorts = [ config.services.spotifyd.settings.zeroconf_port ];
+  networking.firewall.allowedUDPPorts = [ 5353 ]; # mDNS
+
+}