Omnichain Vaults Inside LayerZero's ERC4626 OVault Standard I Matthew Krak

Thu, Oct 2, 2025, 12:00 AM

Matthew Krak, Developer Ecosystem Lead at LayerZero Labs, presents on building omnichain vaults using LayerZero’s ERC4626 OVault standard. He explains LayerZero’s permissionless, censorship-resistant, and immutable interoperability protocol, enabling developers to deploy smart contracts across any blockchain and send arbitrary data/messages using customizable security stacks (DVNs like Google, Axelar, CCIP, Wormhole). LayerZero’s architecture supports both vertical and horizontal composability, allowing complex cross-chain execution flows and atomic/non-atomic operations. The talk details how omnichain vaults simplify ERC4626 vault interactions, enabling users to deposit assets on any network and receive shares on any destination, all via a single hub chain. Krak demonstrates deploying an omnichain vault using LayerZero’s tooling, configuring networks, assets, and shares, and wiring contracts for cross-chain communication. He answers questions on vault architecture, asset/share redemption, liquidity, and customization, emphasizing the flexibility and extensibility of the OVault standard for cross-chain DeFi. 00:00 Introduction 00:27 LayerZero Overview & Interoperability 01:23 Security Stack & Message Verification 02:33 Customizable Security & Validation 03:39 Vertical vs. Horizontal Composability 04:51 Cross-Chain Token Transfers 05:41 Omnichain Vaults & ERC4626 Standard 06:53 Omnichain Vault Workflow 08:15 Live Demo: Deploying an Omnichain Vault 11:24 Configuring Networks & Contracts 12:54 Compiling & Deploying Contracts 15:16 Asset & Share Token Configuration 15:58 Wiring Contracts Across Chains 18:16 Supported Networks & Documentation 19:07 Testing Cross-Chain Vault Operations 20:49 Reverse Redemption Flow 22:07 Q&A: Vault Architecture & Liquidity 24:36 Vault Limitations & Customization 26:13 Project Resources & Closing _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 🇺🇸 *ETHGlobal New York* This workshop is specifically for ETHGlobal New York, a 3-day hackathon held August 15-17, bringing together the most skilled web3 developers, designers and product builders from all around the globe for a weekend-long adventure to advance the Ethereum ecosystem! Watch the full ETHGlobal New York 2025 playlist here: https://www.youtube.com/playlist?list=PLXzKMXK2aHh4Xze0ZeSWCSGsw25clPpvZ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ✅ *Follow LayerZero* X: https://x.com/LayerZero_Core ✅ *Follow ETHGlobal* X: https://x.com/ETHGlobal​ Warpcast: https://warpcast.com/ethglobal Website: https://ethglobal.com YouTube: https://www.youtube.com/c/ETHGlobal _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _Are you interested in Ethereum development and entrepreneurship?_ 👉 Sign up for the next ETHGlobal event: https://ethglobal.com/events 🎁 Get exclusive access and perks with ETHGlobal Plus! https://ethglobal.com/plus 📣 Want us to throw an event in your city? Tell us where! https://ethglobal.com/city _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _