Recently heard of this thing going on in Bitcoin-land: RSIC. RSICs were airdropped NFTs that have the utility of being a miner that “mines” a coin called runes (21 per BTC block) Rune, in general, is an upgraded BRC20 / meta-protocol, it was conceived by Casey Rodarmor, creator of Ordinals. It is not certain whether this project is associated with Casey or not.