Ethereum L2 blockchain LightLink uses Celestia as the data availability layer

ChainCatcher message, the Hummingbird client of the Ethereum L2 blockchain LightLink has launched on the Celestia mainnet, publishing L2 data to Celestia DA and verifying it, sending only the block headers to Ethereum. LightLink states that using Celestia as its data availability layer will reduce costs compared to Ethereum, allowing us to save costs for end users in the form of lower transaction fees.