Setup mail server and restructure some things

config/hosts/nitter/nitter.nix

@@ -0,0 +1,21 @@
+{ ... }:
+{
+  services.nitter = {
+    enable = true;
+
+    server = {
+      title = "Birdsite";
+      https = true;
+      address = "127.0.0.1";
+      port = 8080;
+      hostname = "birdsite.nekover.se";
+    };
+    
+    preferences = {
+      theme = "Mastodon";
+      replaceTwitter = "birdsite.nekover.se";
+      infiniteScroll = true;
+      hlsPlayback = true;
+    };
+  };
+}