Prevents backup and file manager plugins from being activated on a WordPress website.
Users kept cloning the demo sites I created for Location Picker at Checkout and Delivery & Pickup Scheduling. Manually deactivating the demo license from those sites was a chore.
Simply copy the no-replicas.php file into your wp-content\plugins\mu-plugins folder of your demo template. Create the mu-plugins folder if it does not exist.
Feel free to submit a pull request with additional backup/cloning and file manager plugins. Feel free to fork and make the lib into a general purpose one.