237: Solving Ethereum’s Liquidity Problem: Barna from Malda on Unified Lending Across Rollups

Barna, co-founder of Malda and mendi.finance, joins the podcast to break down Ethereum’s biggest DeFi problem: liquidity fragmentation. He explains how their protocol is using ZK co-processors and a host-extension chain model to unify lending and borrowing across rollups like Linea, Base, and more. We talk about why Ethereum’s growth has stalled, how liquidation mechanics work across chains, and what’s next in capital-efficient DeFi. Key Timestamps[00:00:00] Introduction: Sam introduces Barna and previews the discussion on Ethereum, DeFi, and Malda. [00:01:00] Barna’s Background: From VC to Web3—how Barna entered crypto and launched Mendi Finance. [00:02:30] Rise of Rollups: Why Mendi chose Linea and the appeal of zk rollups. [00:04:00] Fragmentation Problem: How liquidity gets stuck across chains and slows DeFi down.[00:07:30] Bridging Bottlenecks: Why even optimistic rollups and native bridges hurt capital efficiency. [00:10:00] Lending Constraints: How fragmented liquidity impacts borrowing depth and real-time trades. [00:13:00] Global Architecture: The host-extension chain model and zkVMs powering Malda’s unified protocol [00:17:30] Liquidations Across Chains: Barna explains how Malda lets liquidators repay from any supported chain [00:20:00] Testnet + Mainnet Plans: What's next for Malda as they prepare for launch and audits. [00:22:00] Future Upgrades: Building dynamic interest rates, loyalty incentives, and more with zk computation. [00:24:30] Ask and Call to Action: Public sale coming soon—team open to investors, builders, and contributors. [00:26:00] Wrap-Up: Sam and Barna close the episode with final thoughts and how to connect. Connect https://malda.xyz/ https://mendi.finance/ https://x.com/malda_xyz https://x.com/realbarnakiss Disclaimer Nothing mentioned in this podcast is investment advice and please do your own research. Finally, it would mean a lot if you can leave a review of this podcast on Apple Podcasts or Spotify and share this podcast with a friend. Be a guest on the podcast or contact us - https://www.web3pod.xyz/