Allows making the f-keys the primary keys without relying on the bloated logi+ software.

Models (currently supported models are checked)

• [*] k380
• [*] k480

Credits:

• @jergusg Their repository was used to determine the k380's byte sequence, and the logic for how and when to send the sequence. https://github.com/jergusg/k380-function-keys-conf
• @ericmbf Their repository was similarly used for the k480's byte sequence + device id. https://github.com/ericmbf/k480-ubuntu-fn-invert-auto