Rotate logs using logrotate

configuration.nix

@@ -133,7 +133,15 @@ with pkgs;
   };
 
   # Rotate logs after 7 days
-  services.journald.extraConfig = "SystemMaxFiles=7";
+  services.logrotate = {
+    enable = true;
+    settings = {
+      "/var/log/journal" = {
+        frequency = "weekly";
+        rotate = 7;
+      };
+    };
+  };
 
   # Increase inotify limits
   boot.kernel.sysctl = { "fs.inotify.max_user_watches" = 204800; };