# Ali Serag & b z I Building Cross VM Apps With Flow Foundation I ETHGlobal Taipei 2025

- Channel: [ETHGlobal](https://streameth.org/ethglobal)
- Date: 2025-10-09
- Duration: 20:16
- Topics: Flow blockchain, cross-VM apps, EVM compatibility, Cadence VM, NBA Top Shot, Disney Pinnacle, sponsored transactions, bundled transactions, verifiable random function (VRF), multi-role node architecture, ETHGlobal Taipei 2025, consumer scalability, smart transactions, Flow Foundation, Solidity, gasless UX, account linking, AI agents, DeFi protocols, NFT projects, CryptoKitties
- Watch: https://streameth.org/watch/yt-Xa_VR56UmYU
- YouTube: https://www.youtube.com/watch?v=Xa_VR56UmYU

## Description

Discover how to build cross-VM applications on Flow Blockchain in this ETHGlobal Taipei 2025 workshop with Ali Serag and BZ from Flow Foundation. Learn about Flow's unique multi-role node architecture, EVM compatibility, and Cadence VM for scalable consumer apps like NBA Top Shot and Disney Pinnacle.

Explore sponsored transactions, bundled transactions, and VRF (verifiable random functions) without oracles. Whether you're interested in gaming, DeFi, or AI agents, this session covers how to leverage Flow's developer-friendly tools to create seamless cross-VM experiences.

00:00 - Introduction to Flow Blockchain & Consumer Scalability
00:45 - How CryptoKitties Sparked Blockchain Scalability Needs
01:25 - Flow’s Origin: Solving Ethereum’s Congestion Problem
02:29 - NBA Top Shot: Flow’s First Mass Adoption Case Study
03:46 - Flow’s Multi-Role Node Architecture Explained
04:45 - Horizontal Scalability Without Sharding
05:22 - Major Brands on Flow: NFL, Disney, Ticketmaster
06:22 - Flow’s Dual VM Approach: Cadence & EVM
06:56 - EVM Compatibility: Why Flow Adopted Solidity
07:50 - Smart Contracts Security & Auditing Challenges
08:22 - Smart Transactions: Gasless UX & Sponsorship
09:48 - Solving Web3 UX: Sponsored Transactions Demo
10:44 - Bundled Transactions & Pre/Post-Conditions
11:17 - Capabilities: Fine-Grained Permissions for AI Agents
12:15 - Cross-VM Demo: Batch Transactions with FCL & Wagmi
13:45 - Flow Wallet: Sponsorship & Gasless Onboarding
15:22 - Deploying Smart Contracts on Flow EVM
18:25 - Flow’s EVM++: Accessing Cadence Features from Solidity
19:32 - Closing: How Hackathon Projects Can Shape the Industry

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🇹🇼 *ETHGlobal Taipei*
This workshop is specifically for ETHGlobal Taipei, a 3-day hackathon held April 4-6 2025, that brought 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!

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✅ *Follow Ali Serag*
X: https://x.com/AliSerag0

✅ *Follow Flow Foundation*
X: https://x.com/flow_blockchain

✅ *Follow ETHGlobal*
X: https://x.com/ETHGlobal​
Warpcast: https://warpcast.com/ethglobal
Website: https://ethglobal.com
YouTube: https://www.youtube.com/c/ETHGlobal 

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_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

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