Harvest.art is the original tax loss harvesting service for NFTs. Since 2021, over 140,000 (mostly worthless) NFTs have been sold to the farm, making it one of the largest (and most illiquid) NFT wallets in existence. While the underlying smart contracts have always been open source and available for anyone to use onchain, the app was recently upgraded to include an innovative checkout process that unifies the cross-chain experience across mainnet and a handful of L2s, setting a solid example for UX-focused building in a cross-chain world.