hello @birna.holmarsdottir, welcome to the Tulip Community!! it would be great if you could introduce yourself here: Welcome to the Community, let's meet!.
regarding your questions you can indeed integrate NFC reader into Tulip. you can either use a supported scanner (https://tulip.co/devices/#rfid) or set up as a scanner to be recognized in your apps as a custom barcode scanner (How to Set Up a Barcode Scanner | Tulip Help Center - Support for Building Manufacturing Apps). does this make sense?? let me know if there’s something we can clarify!!
thanks again for posting, and welcome to the Tulip Community!!