Matthew Karsten

Only 4 days until @devsyrem and I meet in person for the first time IRL and Pitch @buildcoldstar together in Miami May 4th presented by @MonkeDAO and @SuperteamUSA. 🎤

@Multichain @mrunique caught the show today great job!

1 day before we unveil the system behind pre-launch traction. From $9M to $460M in TVL wasn't luck. Clear positioning, aligned distribution, and stronger capital conviction created momentum. Pre-launch traction is built systematically. Tomorrow | 11:30 AM EST luma.com/8u7v3uea

x.com/i/spaces/1vKpP… Road to Consensus is heating up. This week we’re tapping in with some serious builders and operators shaping what’s next across Web3, AI, and tokenization. We’ve got: Gardner — Cofounder of MyUnicornAccount, bringing sharp insight across AI and security Matthew Karsten — Co-founder of BuildColdstar, engineer across ZetaChain, Solana, and more Rene Castagnino — Technology executive focused on AI strategy, digital transformation, and payments Mnee Foundation — Driving trust and long-term alignment in asset tokenization Real conversations. Real experience. No surface-level takes. Join us live on X Spaces Wednesday 3PM EST | 7PM UTC @Gardner @expertvagabond @mneefoundation @rcastag @CoinTracker @CoinWOfficial @Sovos @Cravath @SovosCompliance @DigiSharesDK @DAGFamilyOffice @The_DTCC @ForvisMazarsUS @WithumCPA @WalkersGlobal @voltage_cloud @utila_io @trmlabs @SiaFoundation @graphprotocol @tbvxyz @tatum_io @Tangem @SovosCompliance @shiftmarkets @SPGlobal @RopesGrayCrypto @rise_pay @Quicknode @PrimeDelta_ @OVHcloud_US @Oppenheimer @nonco_otc @MessariCrypto @consensus2026 @MercadoBitcoin @meanwhile @Mastercard @LunaPRofficial @LewisBrisbois @scottrspiegel @scarlett_arana @TechCortes @Defimedia1 @walter_defi @k1dandwalt @K1d_Crypt0 @consensus2026 @Realtechcortes @sagamorehotel

DAPP WHITELIST NOW LIVE! Coldstar is coming to @solanamobile First 200 signups get free merch! Sign up here: Coldstar.dev/whitelist

I'm building in the Solana Frontier Hackathon, powered by @Colosseum! arena.colosseum.org/hackathon/soci…

Working on another book release: Superteams and how to build them released today on amazon amazon.com/dp/B0DJWNB8NL

Accelerate Solana Consensus: Six Years of Building the Fastest Chain on Earth Kindle Edition New Book Release: amazon.com/dp/B0GTR7JF66

We helped rebrand Msafe to @MMTFinance and supported the team during a highly sensitive growth phase, leading rebranding strategy, capital positioning, PR, KOL alignment, and more. Momentum grew to the largest DEX on Sui during our engagement 🚀 • TVL: $9M → $460M • Swap Volume: $14.5M → $26B • 1.7M+ users onboarded • $453K KOL investments secured Proud of what was built. Even more excited for what’s ahead.

@aerosol_xyz looks like a winner to me

Introducing JobSkr 📡 A new product from Aerosol that brings real signal to hiring on Solana. Employers stake to prove jobs are real. Candidates stake to prove they are serious. No ghost jobs. No spam applications. Coming soon to a Seeker near you 📲

I'm claiming my AI agent "coldstar_psm" on @moltbook 🦞 Verification: den-CCF2

@daskittycat @fullstackmiguel i’d take that move tho tbh it’s legit good for the soul

@fullstackmiguel No one tells you how cold the water is.

pro tip: forget vitamin D supplements just move to Portugal

Drop a W for the first Win of the Month of 2026. @devsyrem won the @areta_io bounty, bagging $12,500 worth of audit credits. Syrem is building RugGuard — a Solana browser extension and wallet tool that helps users interact safely with tokens and liquidity pools.

@buildcoldstar #buildcoldstar

@mattytay @unruggable_io i favor @buildcoldstar

The ruggings will continue until a new hardware wallet is adopted. This is a @unruggable_io post.

Coldstar is a CLI-first program that turns any USB drive into a Solana Native Cold Wallet. Built for developers, traders, and whales who want control, not black boxes. Open-Source. On Solana. Repo: github.com/ChainLabs-Tech…

We just turned 10 random USB drives into cold wallets. No Ledger. No permanent keys. Signed. Wipe. Done.

Happy Holidays!

DIY- @solana Hardware Cold Wallet turning ANY USB into a Pure Cold Wallet by @devsyrem So simple, So clean, so dope. #superteam

meet the new PURP2 pump.fun/coin/FaRotGdin…