Setup mail server and restructure some things

config/hosts/nitter/nginx.nix

@@ -0,0 +1,23 @@
+{ config, ... }:
+{
+  services.nginx = {
+    enable = true;
+    virtualHosts."birdsite.nekover.se" = {
+      forceSSL = true;
+      enableACME = true;
+      locations."/robots.txt" = {
+        return = "200 \"User-agent: *\\nDisallow: /\\n\"";
+      };
+      locations."/" = {
+        proxyPass = "http://${config.services.nitter.server.address}:${builtins.toString config.services.nitter.server.port}";
+        proxyWebsockets = true;
+      };
+      extraConfig = ''
+        listen 0.0.0.0:8443 http2 ssl proxy_protocol;
+
+        set_real_ip_from 10.202.41.100;
+        real_ip_header proxy_protocol;
+      '';
+    };
+  };
+}