Builder's Block #006 - Arbitrum Update on L2 Privacy and Devconnect Key Takeaways
🥷 Privacy is not optional anymore - Explore zk, FHE and more.
🇦🇷 ArbiVerse Took Over Devconnect
📣 Announcements
Key updates from the Arbitrum ecosystem and Foundation.
ArbiVerse Recap at Devconnect Buenos Aires

-
Tech Innovations & Infrastructure: We explored Universal Intents and ZK integration for true interoperability. Sessions on FHE rails, Timeboost, and custom Arbitrum Chains highlighted the future of high-performance infrastructure.
-
Ecosystem & Builder Tooling: Builders focused on shipping with Solidity and Stylus guides. We also covered the financial layer through RWAs, stablecoin evolution, and the power of grassroots innovation.
➡️ Watch the Full ArbiVerse Session
Here is the agenda to help you get right to what you’re interested in:
- 00:36 - Arbitrum Everywhere overview
- 34:30 — Redstone Oracles & Stylus integration progress
- 59:20 — Panel: Deploying on Arbitrum One vs. launching your own Chain
- 01:35:00 — Workshop: Building private AI Agent payment flows
- 01:58:00 — Fireside Chat: ZK proofs coming to Arbitrum
- 02:22:52 — Workshop: Refactoring contracts for FHE with Fhenix
- 02:54:14 — Building your first Farcaster Miniapp
- 03:22:47 — Multichain technical implementation with Wormhole
- 03:54:54 — Panel: Challenges of Stylus adoption in a Solidity world
📚 Learn & Build
This week, the key themes for builders are clear: Privacy and Cross-Chain Interoperability. These two pillars not only are dominating Devconnect 2025, but also represent critical frontiers for L2 innovation heading into 2026
Highlights from Arbitrum’s Privacy Open Space on Smart Contract Confidentiality

The Privacy Open Space hosted by Arbitrum brought together builders pushing the boundaries of privacy on Ethereum. Topics included Anonymity vs. Confidentiality, smart contract encryption via FHE, multi-party computation (MPC), compliance-ready privacy, and use cases in gaming, payments, and insurance.
➡️ Listen to the Space
"The Arbitrum Thesis” - A Builder’s Take by Hunter
In this community-made video, OCL contributor Hunter breaks down his take on long-term vision for Arbitrum. A must-watch for new builders and DAO participants looking to understand the ethos driving the ecosystem.
➡️ Watch on YouTube
🔦 Ecosystem Highlights
Fresh launches and standout threads from around the Arbitrum ecosystem.
Messari Unpacks the Arbitrum Thesis in a New Report
The piece offers a comprehensive look at what the Arbitrum Everywhere framework means in practice for builders, enterprises, DeFi teams, and the DAO. With rich charts, case studies, and data-driven insights, this report is a standout resource for anyone following the ecosystem’s growth.
➡️ Check the report
Curvy v2 Launches Stealth Address Aggregator for Private Onchain Fund Management

Curvy’s latest release on Arbitrum introduces zk-enabled stealth aggregation for private asset control. Users can now manage and split funds via zero-knowledge tech while preserving confidentiality and composability.
➡️ Explore Curvy v2
Symphony Makes x402 Payments Fully Cross-Chain
Symphony became the first protocol to enable fully interoperable x402 payments across chains using Arbitrum.
➡️ Read the Thread on X
Allora Network Brings Onchain Machine Learning to Arbitrum

Allora Network has launched its decentralized AI protocol on Arbitrum, enabling dApps to plug into live prediction feeds and onchain intelligence. Use cases include AI-powered oracles and dynamic price markets.
➡️ Learn more about Allora
🛠️ Dev Tooling & Infra
Updates to SDKs, CLIs, and developer workflows across the stack.
Arbitrum Bridge Plugin Unlocks Seamless Cross-Chain UX
The Arbitrum Bridge Plugin, demoed by Conuity at X402, enables developers to integrate cross-chain token bridging directly into their dApps. Through an embedded iframe widget, users can bridge assets across chains without leaving the app interface.
➡️ Try the UX plugin
Scaffold-ETH x Arbitrum: dApp Prototyping on L2
If you're a developer, save time by leveraging this popular Ethereum development framework.
➡️ Explore the repo
🗓️ Events
Workshops, hackathons, and ecosystem meetups to watch.
Nov 21st - Let's wrap up DevConnect with ArbiPanadas

When & Where:
⏰ Friday Nov 21st
📍 Buenos Aires, Argentina
🗓️ RSVP required
➡️ Register NOW
Devconnect Reveals Future of Ethereum: Privacy, AI, Interop, and Governance
From Buenos Aires to the world: Devconnect 2025 is packed with future-facing topics for the Ethereum ecosystem.
- Privacy: zk, FHE, and encrypted smart contracts took center stage.
- Interoperability: L2s aligned on messaging standards and shared sequencing.
- AI & Infra: DePIN and onchain AI featured heavily.
- Governance: Scaling DAOs, coordination tooling, and regulatory UX were hot topics.
🧵 Forum & Community Discussions
What builders are debating and proposing this week.
Ed Felten Sheds Light on Multi-Constraint L2 Pricing Model on Arbitrum
Ed Felten opened the discussion of a flexible pricing framework balancing network inclusion, fairness, and congestion across Layer 2 chains. A must-read for Arbitrum DAO participants and protocol economists.
That’s all from Builder’s Block #006. Thank you for reading, and keep building. Arbitrum Everywhere.