> ## Content Index
> Fetch the complete content index at: https://blog.arbitrum.foundation/llms.txt
> Use this file to discover other available public pages before exploring further.

# Builder's Block #008 - Porting Solana to Arbitrum, Prysm Post-Mortem & WASM performance
- URL: https://blog.arbitrum.foundation/builders-block-008-porting-solana-to-arbitrum-prysm-post-mortem-wasm-performance/
- Published: 2025-12-23T14:17:31.000Z
- Updated: 2025-12-23T14:17:31.000Z
- Author: Arbitrum Foundation
- Tags: Builder Newsletter

💡

****What's Important This Week**  
🔹 Prysm ****Post-Mortem** on Fusaka  
⚙️ Why WASM is the answer to ****execution models**  
💲 ****Gas** is the new ****Vitalik's** discussion

## 📣 Announcements

*Key updates from the Arbitrum ecosystem and Foundation.*

### Prysm Mainnet Post-Mortem

Technical analysis of the "Fusaka" incident on Mainnet. Details the root cause, the impact on network participation, and the patches implemented in v7.0.1+ to prevent recurrence.  
➡️ [Read post-mortem](https://prysm.offchainlabs.com/docs/misc/mainnet-postmortems/?ref=blog.arbitrum.foundation)

## 📚 Learn & Build

*New learning drops and hands-on resources from across the Arbitrum ecosystem.*

###  Discover how WASM Elevates Performance Beyond the EVM 

![stylus-multivm.jpg](https://storage.ghost.io/c/d4/cc/d4cc8040-691e-4dd2-8282-0c08d45fc5a8/content/images/2025/12/stylus-multivm.jpg)

A deep dive into how Stylus uses WebAssembly to complement EVM execution limitations. Explains how WASM enables more efficient computing and lower gas costs while maintaining full interoperability.  
➡️ [Read article](https://blog.arbitrum.foundation/how-wasm-elevates-performance-without-leaving-the-evm/)

### Optimized Redstone Oracles: A technical deep dive

New technical analysis from RedStone integration with Arbitrum Stylus to process oracle data with lower latency and cost.  
➡️ [Read on X](https://x.com/castle%5Flabs/status/1998771744715292781?s=20&ref=blog.arbitrum.foundation)

### 5 hands-on sessions on Arbitrum Stylus

A full course on YouTube, including an intro to Stylus, a speedrun, Uniswap fork in Stylus-based coding, Stylus data types, and the Stylus CLI.  
➡️ [Watch it on YT](https://www.youtube.com/playlist?list=PLDQrbdlvR%5FeEKv42YTC1DNzgdbv-x%5FNOs&ref=blog.arbitrum.foundation)

### Building Agentic Payment Flows Session

If you’re building for x402 and AP2, this session is a must watch. CapxAI and Arbitrum have prepared a full workshop on Agentic Payment Flows and Private AI Inference.  
➡️ [Watch it on X](https://x.com/0xCapx/status/2001691632283140106?s=20&ref=blog.arbitrum.foundation)

### Migrate Solana applications to Ethereum liquidity

Solana teams looking to expand into Ethereum liquidity without ditching Rust: StylusPort is a practical handbook + CLI/MCP assistant for bringing Rust programs to Arbitrum Stylus with familiar tooling.  
➡️ [Watch it on YT](https://www.youtube.com/watch?v=cHVTs9Bs8mQ&ref=blog.arbitrum.foundation)

---

## 🔦 Ecosystem Highlights

*Fresh launches and standout threads from around the Arbitrum ecosystem.*

### L2 vs L1 Economic Models

A breakdown of the fundamental differences between Ethereum L1 and L2 economics. Analyzes long-term sustainability, sequencer revenue models, and data availability costs.  
➡️ [Read thread](https://x.com/Offchain/status/1998409395672145927?s=20&ref=blog.arbitrum.foundation)

### Confidential Payments and Lending Auctions Talk

Technical exploration of implementing confidential stablecoins and sealed-bid lending auctions directly on Arbitrum by Peyman Momeni from Fairblock.

---

## 🗓️ Events

*Workshops, hackathons, and ecosystem meetups to watch.*

### Meet Steven Goldfeder

![G79RuumXEAAiupS.jpeg](https://storage.ghost.io/c/d4/cc/d4cc8040-691e-4dd2-8282-0c08d45fc5a8/content/images/2025/12/G79RuumXEAAiupS.jpeg)

Join Offchain Labs' CEO at the end-of-year special event, in person in Tel Aviv or online. There is a surprise planned.  
➡️ [Grab Your Spot Now](https://luma.com/2sejr2tg?ref=blog.arbitrum.foundation)

---

## 🧵 Forum & Community Discussions

*What builders are debating and proposing this week.*

### Vitalik on Trustless Gas Prediction Markets

Vitalik Buterin discusses architecture for trustless gas prediction markets. A technical approach to optimizing fee estimation and improving block market efficiency on L2s.  
➡️ [Read on X](https://x.com/VitalikButerin/status/1997279838252531823?ref=blog.arbitrum.foundation)

### AIP: Activate ArbOS 51 

Constitutional proposal to activate ArbOS 51 "Dia". Includes support for Ethereum's Fusaka upgrade changes, gas pricing improvements, and critical node optimizations.  
➡️ [Vote on Tally](https://www.tally.xyz/gov/arbitrum/proposal/53154361738756237993090798888616593723057470462495169047773178676976253908001?govId=eip155:42161:0xf07DeD9dC292157749B6Fd268E37DF6EA38395B9&ref=blog.arbitrum.foundation)

### Proposal: Stablecoin Fast Lane

Forum discussion on creating a transaction fast lane (similar to TimeBoost) specifically optimized for stablecoin payments to reduce latency in financial transactions.  
➡️ [Read proposal](https://forum.arbitrum.foundation/t/create-another-fast-lane-similar-to-timeboost-specifically-optimized-for-stablecoin-payments/30336?ref=blog.arbitrum.foundation)

---

That’s all from Builder’s Block #008\. Thank you for reading, and keep building. Arbitrum Everywhere.