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The Arbitrum Builder's Block: #002

Arbitrum Foundation

Arbitrum Foundation

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The Arbitrum Builder's Block: #002
Builder's Block is a biweekly educational newsletter from the Arbitrum Foundation focused on delivering you the latest developer news surrounding the Arbitrum tech stack and ecosystem.

Whether you're building on the Arbitrum platform with Rust or Solidity, we've got you covered.

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tl;dr Offchain Labs acquires Zerodev; partners with Succinct, Open House Hack announced, Typescript support for Stylus, lots of dev tooling updates and releases. Scroll on for tools, events, and threads.

Announcements

Key updates from the Arbitrum ecosystem and the Foundation.

  • Offchain Labs is bringing ZK to the Arbitrum ecosystem with SuccinctLabs
    Tandem has partnered with Succinct, enabling faster capital movement and simpler integration for developers through the power of modular ZK provers.
    ➡️ Read the full thread
    ➡️ Explore Tandem

  • Register for the Open House India IRL Hacker House in Bengaluru and ship your ideas onchain
    Gzb0NwjbIAA5Ywl.jpg
    The IRL Hacker House in Bengaluru brings four days of intensive hacking using the same tech stack that BlackRock and Robinhood bet their reputations on. We've built the infrastructure - you bring the vision.

    • 4 days of hacking
    • 1:1 mentoring & workshops with our sponsors:
      • OpenZeppelin
      • Ethereum Foundation - Founder success program
      • Appwrite
      • Couchbase
    • wellness activities
    • $70k in prizes

    ➡️ Register now

  • Offchain Labs has acquired Zerodev, one of the most talented teams in crypto building next-gen smart accounts
    GyPTGIeXgAA21GM.jpg
    ZeroDev powers more than 5 million smart accounts across 30+ chains today. This acquisition comes at a time when more large institutions are committing to bringing their businesses onchain and where consumer apps are becoming an effective onboarding mechanism for everyday users.

    There's an enormous need for backend infrastructure that can be flexible, secure, and seamless without compromise.

    We believe smart accounts are central to delivering on these promises.
    ➡️ Read the full thread

Ecosystem Highlights

Fresh launches and standout threads from around the Arbitrum ecosystem.

  • How Variational is Reinventing Derivatives Onchain with Arbitrum
    0825_Variational_CaseStudy_Blog_option1.jpg
    Read into how Variational is accelerating derivatives on Arbitrum in this case study.
    ➡️ Read the blog post

  • EntropyAdvisors launched a new Dune dashboard: Arbitrum Network Overview
    Did you know that Arbitrum:

  • Gamer Spotlight covers Footium, an onchain football management game
    Dive into Footium, a strategic onchain football management game that lets you own your club, set your tactics, and compete against other players in a live match setting, built on Arbitrum.
    ➡️ Read the spotlight

Dev Tooling & Infra

Updates to SDKs, CLIs, and developer workflows across the stack.

  • ArbOS 40 (Callisto) is now live across all Arbitrum Orbit chains via Gelato
    GzdKbBebkAIk5-6.jpg
    Launch Orbit chains with enterprise-grade UX from day one. Orbit chains deployed with Gelato can access powerful UX and EIP-7702 features out of the box:

    • Batching - combine multiple user operations into a single tx
    • Gasless UX - sponsor gas or let users pay with any token
    • Security - enable passkey login, session keys, and spending limits
    • Seamless onboarding - add MFA, recovery, and permissioned workflows
      ➡️ Read the full post

  • AssemblyScript support for Stylus arrives, powered by WakeUp Labs
    Developers can now:

  • thewizard.app allows you to write, test, and deploy Rust contracts directly in your browser. No setup required
    rEHYX5E.png
    Wizard is a complete development environment for Stylus smart contracts, right in your browser. Featuring:

    • Instant Project Setup
    • Rust Code, Stylus-Ready
    • Zero-Setup Compilation
    • 1-Click Arbitrum Deployment
    • Interactive Contract Testing
    • Share & Collaborate with read-only links
      ➡️ Give Wizard a try

  • The 1 year anniversary of Stylus/Rust contracts on Arbitrum is coming up on September 3rd
    This means some contracts will need to go through annual re-activation.
    ➡️ Here's what this means and what to do

Events

Workshops, hackathons, and ecosystem meetups to watch.

  • Open House India Hack: Sep 18-21
    The IRL Hacker House in Bengaluru brings four days of intensive hacking using the same tech stack that BlackRock and Robinhood bet their reputations on. We've built the infrastructure - you bring the vision.
    ➡️ Register now for Open House India Hack

Forum & Community Discussions

What builders are debating and proposing this week.

  • Discussion: Improving the Arbitrum Security Council
    This discussion covers how to enhance the candidate pool for future elections, improve the Security Council’s operations, strengthen other off-chain aspects of the Security Council election process, and address topics identified in OpenZeppelin’s Arbitrum Security Council Recommendations.
    ➡️ Read the full post and participate in the discussion

  • Lampros DAO has created an Arbitrum Orbit chains revenue dashboard
    This dashboard helps shine light on which Orbit chains are generating the most revenues and to see the broader economic patterns for Orbit chains. For now, it contains the following Orbit chains: Deri, Rari, Xai, Proof of Play Apex, Blessnet, EDU Chain, ApeChain, Molten Network, Proof of Play Boss, WINR, Superposition, Sanko. More chains will be added as they become indexable.
    ➡️ Check out the dashboard
    ➡️ Read the full post

  • The Open Discussion of Governance Call took place last week>
    Topics covered include the Omnibus proposal, version 1.7 for Delegate Incentive Program, Security Council election improvement process, ArbOS 50, and sunsetting the DIP program.
    ➡️ Read the full post
    ➡️ Watch the recording

  • Arbitrum Gaming Ventures (AGV) posted their Aug update
    In Sep, the AGV will be attending Korea Blockchain Week and TOKEN2049 Singapore to connect with builders and highlight Arbitrum’s growing footprint in Asia. The AGV team is now also fully operational with 2 additional hires: the General Manager that brings deep experience in gaming, venture capital, and corporate development and the General Counsel whose role is to guide legal operations and deal flow while shaping AGV regulatory strategy.
    ➡️ Read the AGV August update

  • The Speedrun Stylus grant has concluded and the grantee posted their final report on the forum
    The program is an open developer onboarding and challenge platform focused on Stylus and ZK within the Arbitrum ecosystem. Since the initial go-live in Jun 2025, the program has onboarded 400+ developers, 650 project submissions, and 5 live sessions and workshops.
    ➡️ Read the report

  • On Tally, the Omnibus proposal entered its final week of voting
    The proposal combines 3 routine technical proposals: Remove Cost Cap on Nova, Update the Upgrade Executors, and Disable Legacy Tether Bridge. As of the date of writing, the proposal has garnered 103.5M votes out of 206.5M votes needed. There’re about 4 days left for voting until Sep 5th.
    ➡️ Read the proposal and vote

  • On Snapshot, ArbOS 50 Dia is undergoing a temperature check
    So far the sentiment has been overwhelmingly positive, with 42.5M votes in favor of the proposal. The off-chain vote will be available until Sep 4th.
    ➡️ Read the proposal and vote

That’s all from Builder’s Block #2. Thank you for reading, and keep building. Arbitrum Everywhere.

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