How did you integrate our partners, if any?

We integrated Across Protocol as our core cross-chain bridging infrastructure, utilizing their spoke pools for seamless asset transfers between chains. The AcrossIntegration.sol contract manages bridge operations, fee calculations, and transaction monitoring to enable automatic routing of swaps to the most cost-effective blockchain while maintaining security and reliability.

What are the key links to share? (Ex. demo video, GitHub, deck)

Github:github.com/najnomics/gasoptimizationhook Slides: https://docs.google.com/presentation/d/1WQqS7ZVYlP8iGXuXpjebgTB74ZPXsa8Rkb_V-BuE4u4/edit?usp=sharing Project Link: Demo Video:https://www.loom.com/share/bf311a3cfe874fb18b0182ff1c409cbb?sid=2304392b-9653-46d9-b1e2-457e6652165a

Problem / Background: What inspired the idea? What problems are you solving?

DeFi users lose significant value to gas fees when swapping on expensive chains - a typical 1 ETH swap on Ethereum mainnet can cost $50+ in gas fees, while the identical swap on Arbitrum costs ~$2. This inefficiency forces users to either accept high costs or manually manage assets across multiple chains. Our hook was inspired by the need to eliminate this friction and automatically optimize execution costs without requiring users to understand cross-chain complexities.

Impact: What makes this project unique? What impact will this make?

This project uniquely combines real-time gas price analysis with seamless cross-chain execution, potentially saving users 90%+ on transaction costs. Unlike existing solutions that require manual chain selection, our hook automatically detects optimal execution opportunities and handles all bridging transparently. The integration of USD-denominated savings display using Chainlink oracles makes cost benefits immediately clear to users, democratizing access to cross-chain optimization regardless of technical expertise.

Challenges: What was challenging about building this project?

The most challenging aspects were designing a robust cost calculation engine that accurately accounts for bridge fees, slippage, and timing while maintaining real-time responsiveness. Integrating multiple protocols (Uniswap V4, Across, Chainlink) required careful state management and error handling across different execution contexts. Additionally, implementing fallback mechanisms for failed cross-chain operations while ensuring user funds remain secure added significant complexity to the architecture.

Team: Who is on the team? What are their backgrounds?