Closed eklem closed 2 years ago
Seems 1 MByte is the largest. That means one tag can fit a lot of semi-long keys. https://nfc-tools.github.io/resources/nfc-tags/type-3/
Then this is repeated until you have enough OTPs on each phone.
Found some 4kbytes cards, can't find any 1mb. It will do for now, no problem. https://www.aliexpress.com/item/32857913248.html?spm=a2g0o.order_detail.0.0.aefdf19cu8tAdb
See what the largest size tags you can find and buy some.