diff --git a/machines/pendulum/matrix.nix b/machines/pendulum/matrix.nix
index baaca29..a3b67f2 100644
--- a/machines/pendulum/matrix.nix
+++ b/machines/pendulum/matrix.nix
@@ -122,5 +122,29 @@
       '';
       root = "/var/www";
     };
+    "community.rs" = {
+      enableACME = true;
+      forceSSL = true;
+      locations."= /.well-known/matrix/server".extraConfig = let
+        # use 443 instead of the default 8448 port to unite
+        # the client-server and server-server port for simplicity
+        server = { "m.server" = "${fqdn}:443"; };
+      in ''
+        add_header Content-Type application/json;
+        return 200 '${builtins.toJSON server}';
+      '';
+      locations."= /.well-known/matrix/client".extraConfig = let
+        client = {
+          "m.homeserver" = { "base_url" = "https://${fqdn}"; };
+          "m.identity_server" = { "base_url" = "https://vector.im"; };
+        };
+        # ACAO required to allow element-web on any URL to request this json file
+      in ''
+        add_header Content-Type application/json;
+        add_header Access-Control-Allow-Origin *;
+        return 200 '${builtins.toJSON client}';
+      '';
+      root = "/var/www";
+    };
   };
 }