“The power of RGB on Bitcoin is unlocked by Lightning Network. Lnfi unlocks DeFi for multi-asset Lightning, providing the performant, scalable settlement layer required for serious financial applications, high-volume trading, asset management, and stablecoin liquidity,”
https://bitcoinmagazine.com/news/rgb-v0-11-1-launches-allowing-the-creation-of-digital-assets-on-bitcoin-mainnet