iirc correctly you can use NFC cards to backup your seed in nostr:npub1s0vtkgej33n7ec4d7ycxmwt78up8hpfa30d0yfksrshq7t82mchqynpq6j newly released passport prime. This is a good way to avoid stamping your seed in steel.
An encrypted backup on a SD card (or multiple for redundancy) is a good way as well. Using SD cards is less obvious than plain text words