Pay anywhere stablecoins are accepted, directly, with the fee payable in the token being sent, so someone holding only stablecoins never has to buy NIM first. On the protocol side this needs stablecoins on Nimiq, fee abstraction and the bridge that brings the stablecoins in.
Linked Protocol milestones: Ad.4 Stablecoin support · Ad.3 Built-in fee abstraction · Ad.2 Bridge improvements 