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Companion
Tap tags on the shelf with your phone. Lookup, write, and move stay synced with your web vault.
Android only for now. No iOS build yet.
Prefer a USB reader at the desk? Use the Shelf of Holding desktop app for writing.
Scan shelf tags
Hold the phone to a sticker to look up a mini or location.
Write NDEF links
Stamp blank NTAG stickers with your shelf URI from the vault.
Same vault
Sign in with Google. Website subscription and the Play unlock are billed separately; Captain unlocks both.