Oak Security Launches StylusPort to Bridge Solana Apps to Arbitrum

The Arbitrum Foundation is launching **Open House London**, a builder program and startup accelerator designed to bring new businesses into the programmable economy. **Key Details:** - **$415K prize pool** - the largest yet from Arbitrum Foundation - **Starts May 25th** with a 3-week online Buildathon - Open to early-stage teams building AI, payments, or DeFi primitives **What Participants Get:** - Technical guidance through workshops - Hands-on mentoring from the Arbitrum ecosystem - Path from concept to mainnet deployment - Competition for prizes and entry into an in-person Founder House in London Alchemy joins as a sponsor, providing enterprise infrastructure and tooling support. Registration is now open at [openhouse.arbitrum.io](http://openhouse.arbitrum.io/?utm_source=twitter&utm_medium=social&utm_campaign=oh-london-buildathon)

**Arbitrum Platform attracted $78M in USDT capital in just one week**, signaling growing adoption of programmable market infrastructure. **Key developments:** - Settlement times compressed from days to seconds through programmable markets - Businesses choosing Arbitrum for instant settlement and operational efficiency - Fintechs adopting programmable infrastructure positioned for competitive advantage **Why it matters:** The capital inflow demonstrates real demand for blockchain-based financial infrastructure that offers predictable costs, real-time settlement, and global market access. Traditional settlement processes that take days are being replaced by instant, programmable alternatives. This follows recent momentum in programmable finance, including cross-chain liquidity solutions, international payment cards, and TradFi asset integration reaching $50B+ in cumulative volume.

Arbitrum has launched new tools to help development teams migrate from Solana to Arbitrum while preserving their existing Rust codebase. **Key Benefits for Teams:** - Preserve existing Rust code and team expertise - Reduce rewrite overhead significantly - Speed up planning, porting and validation processes - Lower time, cost, and hiring burden for testing Arbitrum strategies This initiative builds on Arbitrum's Stylus Sprint program, which recently funded 17 teams with 5M ARB to develop Rust applications and tooling across AI, DeFi, and Gaming sectors. Full details: [blog.arbitrum.io/migrating-from-solana-to-arbitrum](http://blog.arbitrum.io/migrating-from-solana-to-arbitrum)

**Programmable markets are revolutionizing trade settlement**, compressing what traditionally takes days into mere seconds. **The traditional gap**: When you buy or sell a stock on Monday, settlement typically occurs on Tuesday - a full day later. **The tokenized advantage**: In blockchain-based markets, value transfer and settlement happen in seconds, not days. **Key benefits**: - Dramatically reduced settlement time - Lower operational friction - Increased market efficiency Fintechs adopting this technology are positioned to gain competitive advantages in the evolving financial landscape.