Nil Medvedev developed and integrated WeaveVM Data Availability (DA) support into the dymensionxyz/dymint and dymensionxyz/rollapp-evm repositories, expanding data availability options and interoperability for blockchain applications. Using Go and Shell scripting, Nil implemented new DA clients, RPC interfaces, and signer components, along with configuration options and comprehensive tests. This work enabled Dymint to submit and retrieve data through WeaveVM infrastructure and allowed RollApp to configure WeaveVM as a DA client alongside Celestia. Nil’s contributions improved multi-provider support, reduced provider lock-in, and enhanced production readiness, demonstrating depth in blockchain integration, cryptography, and robust documentation practices throughout the process.