# Build a Rollup powered by Avail DA - ETHGlobal Brussels 2024

- Channel: [ETHGlobal](https://streameth.org/ethglobal)
- Date: 2024-10-07
- Duration: 28:36
- Watch: https://streameth.org/watch/yt-0SSgqQKG41I
- YouTube: https://www.youtube.com/watch?v=0SSgqQKG41I

## Description

Join Robin Roy from Avail for a workshop titled, “Build a Rollup powered by Avail DA.”

Learn how to interact with Avail, and maybe even spin up a rollup that is secure and cost-efficient powered by Avail DA.

This workshop took place during ETHGlobal Brussels, a 3-day hackathon held in Brussels, Belgium from July 12 to 14, 2024. ETHGlobal Brussels 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!

00:00 Introduction
00:33 Challenges in Web3 scalability
2:50 What is Avail DA
04:47 Avail does not interpret submitted data. (VM agnostic)
05:29 Trust-minimized Light Clients (Avail’s superpower)
06:49 Avail Nexus
08:16 Avail Fusion
09:04 Avail’s Block Explorer Walkthrough
10:20 Creating an application key (appID)
11:38 Submitting data to Avail via the explorer
14:40 Avail JS SDK walkthrough
17:22 Avail Bounties for ETHGlobal Brussels
20:26 Build an Arbitrum Orbit chain with Avail DA
27:13 Q&A session
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