Anyone looking for an alternative to a permanently installed SCOM will sooner or later find solutions that rely on a one-time activation.
Why this makes a difference in everyday life
No additional cable in the cockpit, no permanent power draw, and no risk of a loose connection while driving speak for a one-time solution rather than a permanent one.
How the alternative works
The M-JET Speed Limit Remover is briefly connected, activated via the app, and can then be disconnected again.