fix: use synapse and nfty for matrix and federation

modules/matrix.nix

@@ -23,7 +23,30 @@
         }
       ];
       
-      enable_registration = true;
+      enable_registration = false;
+      registration_shared_secret = "extremist_software_admin_creation";
+      macaroon_secret_key = config.mySecrets.matrixMacaroon;
+      database = {
+        name = "psycopg2";
+        allow_unsafe_locale = true;
+        args = {
+          user = "matrix-synapse";
+          database = "matrix-synapse";
+          host = "/run/postgresql";
+          cp_min = 5;
+          cp_max = 10;
+        };
+      };
     };
   };
+
+  services.postgresql = {
+    enable = true;
+    ensureDatabases = [ "matrix-synapse" ];
+    ensureUsers = [{
+      name = "matrix-synapse";
+      ensureDBOwnership = true;
+    }];
+  };
 }
+