DarkLight is not and likely will not be open to everyone to easily use (motivation), to be able to use DarkLight a person would need a valid key to start using it. This key will be used to generate a user Id which will be asscoiated with the device you use DarkLight on. Keys can only be used by a single person, after connecting to a distributor for the first time that key can never be used again.
When there have been significant changes to darklight_driver it is recommended that you update
darklight_driver on your device. Since your original key will be invalid you will need to get another one, there
is an information server dedicated to getting new DLU keys. Every month a
DarkLight user will be able to receive two keys, one should be used for updating darklight_driver and the other
could be given to someone else so they can start using DarkLight.