devcon 7 / interoperability between l2s latest developments framework and challenges
Duration: 00:07:14
Speaker: Marshall Vyletel Jr., Wei Dai
Type: Lightning Talk
Expertise: Intermediate
Event: Devcon
Date: Nov 2024
L1SLOAD Precompile: Read L1 State from your L2 Contract
We recently introduced [RIP 7728: L1SLOAD Precompile](https://github.com/ethereum/RIPs/pull/27). This is a new L2 precompile that allows dapps on L2s to read from the L1 state. In this talk, we will explain how L1SLOAD works, and we will highlight some of the most exciting use cases that this precompile will unlock.
Keynote: Unifying Ethereum Through Intents and ERC-7683
Ethereum has scaled with a diverse ecosystem of L2s—but this created a new challenge: how can this fragmented landscape of potentially millions of rollups feel like a **unified Ethereum**? In this talk, I’ll discuss how intent-based architectures—and new standards like ERC-7683—can help unify Ethereum while maintaining the benefits of Ethereum’s rollup centric architecture.
L1SLOAD in Action: Write L2 Dapps that Read from L1 State
In this workshop we will explore some interesting new use cases unlocked by the newly proposed L1SLOAD precompile (RIP-7728). We will develop and deploy L2 dapps that read from L1 state using this precompile.
Farcaster frames: building embeddable Ethereum apps
Frames are an open standard for creating embeddable, interactive apps in social media feeds and on the web. They help solve one of the hardest problems for Ethereum dapp developers: distribution. Although frames originated on Farcaster, it's now possible to build cross-platform frames that work on Farcaster, Lens, XMTP, and the open web. In this hands on workshop we'll introduce the core concepts behind frames and build a simple frame app that interacts with a smart contract.
RIP-7755: Empowering Cross-Chain Interactions
Cross-chain interactions are becoming essential as Ethereum Layer 2 solutions multiply. RIP-7755 changes the game by trustlessly bridging the gap between L2 chains, allowing new use cases that rely solely on Ethereum and its rollups. In this workshop, we’ll explore RIP-7755 by building a cross-chain NFT minting app, focusing on nested storage proof implementation details to eliminate trust assumptions.
Ethereum needs native L2
Right now, L2beat tracks 116 L2s. However, they represent a wide range of trust assumptions, which makes assets—or more abstractly, messages—from these L2s non-fungible and thus significantly hampers interoperability. We are advocating for Ethereum to deploy a large number of native L2s, developed and governed by Ethereum's open-source developers. These L2s would be highly interoperable with L1, fulfilling Ethereum's early promise to provide sharding using L2 technology.
L2 Interoperability via Collaborative SNARKs
Can contracts across rollups interact synchronously while maintaining horizontal scalability? The L2 interoperability problem can be viewed through the lens of collaborative SNARKs, where a coordinator splits a witness over N provers who collectively generate a proof, and the work each prover does should decrease linearly in N (horizonal scaling). This talk presents a solution for the special case of L2 interoperability and motivates new design constraints for SNARKs.
The rise of Appchains: from L2s to Rollup Clusters
Ethereum's rollup-centric approach has led to the emergence of L2 Rollup Clusters reducing fees but creating fragmented liquidity and a less seamless user experience. Third-party bridges, though helpful, are cumbersome, vulnerable to hacks ($2B losses to date), and costly, leading to high fees. In this keynote, Alex will discuss how native interoperability, with ZK at its core, can resolve fragmentation, enabling Clusters to collaborate instead of competing for users and liquidity, ultimately dr
The Three Transitions: Cross-Chain Smart Wallets with Privacy
Last year, Vitalik outlined ["The Three Transitions"](https://vitalik.eth.limo/general/2023/06/09/three_transitions.html) ahead for the Ethereum stack: moving to L2s, smart wallets, and private transactions. The Base team has built [Keyspace](https://docs.key.space/), a cross-chain keystore that helps all wallets makes these transitions. Come learn about how Keyspace works and how Keyspace helps smart wallets sync signers and send private transactions in a multichain world.
Keynote: Nomic Foundation’s vision for Ethereum’s tooling ecosystem
Nomic Foundation is the nonprofit behind Hardhat. Nomic’s co-founder and CTO will walk you through Nomic’s long-term vision for a community-driven developer tooling ecosystem for Ethereum.