Starting from apple 13 iOS , you can create the automations through the shortcut app on the iPhone device to trigger them through a nfc tag. So you will get the opportunity for tag reading Nfc tags with your own actions. For example if you hold your iPhone to the tag you can play a song or start a homekit scene. This works well on iPhone xs, iPhone xs max, iPhone xr , iPhone 11, iPhone 11 pro and iPhone pro max. The nfc automation feature is not supported in older apple versions. You can buy tags in the form of adhesive stickers with a integrated nfc chip from amazon store for a less price.