Arbitrum Stylus, Layer 2s, and My HackQuest Journey

Introduction Arbitrum has emerged as one of the most important scaling ecosystems for Ethereum, combining optimistic rollups, AnyTrust chains, and customizable Orbit chains under a single Nitro technology stack. Within this ecosystem, Arbitrum Stylus represents a major leap in how developers can build smart contracts by introducing a WebAssembly-based execution environment alongside the EVM. This post shares a personal learning journey through HackQuest India Co-Learning Camp 19 - Arbitrum Edition, highlights the core ideas behind Stylus and Arbitrum’s Layer 2 solutions, and presents a mini-project concept called Contract Sentinel that emerged from this experience. ​ HackQuest and the Co-Learning Camp Experience HackQuest is a Web3 developer education platform that combines structured learning tracks, co-learning camps, hackathons, and community events to onboard developers into Web3. The platform has hosted numerous global hackathons, co-learning cohorts, and events, offering a “learn