Redeem an owner's key once and it lives here, tied to your account and to the machine that used it. Pair the loader with a six-digit code and it pulls these down without you typing anything.
Keys are handed out per Discord because that's what the loader checks when you pair it. Link once and redeeming works from any machine.
Bought from a menu owner? Paste the key they sent. Redeeming locks the key to this account; the loader binds it to a machine the first time it launches.
Type the code into the loader's settings. It works once and expires in ten minutes.