Holyflare

Bought an NFC reader/writer and some blank NFC cards today to test this out. When it reads the blank NFC card it uses the UID of it, rather than anything you put on it (and seems to read the cards I got, which were MIFARE ones). When I used a blank card and put my NFC ID from the account I use on it, it went through registration as if it were a new user instead of being my account. You should (in theory - yet to test it out but I don't see why it wouldn't work) be able to use an SQLite Browser and go into the card table and just copy those IDs to your player ID (and card type, since my blank one said it was a Felica card) and change the user you don't want to some arbitrary number to avoid clashing. Will update when I've tried that but can't see it being an issue.