How do I enable Developer Mode?

I've installed Blueprint quite a few times today using Ubuntu 24.04, but I still get the same error when trying to enable Developer Mode. If it helps, my System Information also says "Your panel is not up-to-date! The latest version is 1.11.7 and you are currently running version 1.11.5." I've installed Blueprint manually as well as use Redprint and I've done blueprint -upgrade.