Separate the synapse and coturn services

nixos/server.nix

@@ -25,16 +25,13 @@
     ./server/icecast.nix
     ./server/firewall.nix
     ./server/gitea.nix
-    ./server/lemmy.nix
     ./server/mailserver.nix
     ./server/mariadb.nix
-    ./server/mastodon.nix
     ./server/nextcloud.nix
     ./server/nfs.nix
     ./server/nginx.nix
     ./server/owncast.nix
     ./server/photoprism.nix
-    #./server/pixelfed.nix
     ./server/minecraft
     ./server/vaultwarden.nix
     ./server/transmission.nix
@@ -44,7 +41,13 @@
     # Matrix
     ./server/synapse.nix
     ./server/element.nix
+    ./server/coturn.nix
     ./server/matrix-discord.nix
+
+    # Federation
+    ./server/lemmy.nix
+    ./server/mastodon.nix
+    #./server/pixelfed.nix
   ];
 
   # Set custom openssh port