BYOH - Build Your Own Hardware
Joined December 2025
- Tweets196
- Following61
- Followers671
- Likes716
Coldstar retweeted
Turn any USB stick you already own into a hardware wallet with @coldstar_sol:
keys decrypted only in memory, offline QR signing, open source, one-line install, 1% fee capped at $10.
Three-quarters of a million dollars signed in its first ten weeks, according to the team. W!
Coldstar retweeted
Next picks from the @colosseum Crypto World’s Fair. This time: Infrastructure, Security & Privacy.🛡️Here is my personal pick 👇
Security:
@coldstar_sol - turns any USB drive into an offline signer for Solana. Your keys exist for a split second, then they are gone
@hackhackai - AI security audits built by Solana auditors and checked with real exploit tests
@ProofOfExploit - smart contract audits for early Solana teams that are affordable and can be trusted
@iris_intel_app - shows who is really behind a wallet or a token, and follows stolen money across chains
Stakeward by @alexandr_zhibul - keeps your staked SOL safe, even if someone steals your wallet key
Privacy:
@VisionSwapSol - a private pool, live on Solana mainnet. Send and trade with no link back to you
@TiraiProtocol - private, quantum-safe transfers between Solana and Ethereum for institutions
Puddle by @staycloakedxyz - makes onchain privacy as easy as a normal crypto transfer
p!pon by @Yu_Ayato - prove facts from your ID card, like “over 20”, without showing your name or birthday
@arcane_finance - privacy and compliance in one stack for company payments, payroll and treasury
@Valiron_grade - identity and reputation for AI agents, so businesses know which agents to trust
@akcanetwork - a VPN for people under censorship.
Developer Infrastructure:
@nori_zk - Solana programs can read Ethereum data with ZK proofs, no oracle or multisig needed
SPIN by @payritHQ - payments without internet. Phones with bank apps in Africa connect over Bluetooth
@CatScope_io - fights MEV centralization on Solana with an open market for validator access
@predictefy - one API for 16+ prediction markets, including Polymarket and Kalshi
@pantahq - build your own prediction market app through one API
@tuwa_io - open-source toolkit for wallet login and tracking transactions on Solana and EVM
@soda_labs_ - any Solana wallet or program can own an address on other chains, with no bridge
Ballista by @jacobdotsol - save complex multi-step Solana transactions as templates you can use again
@raptor_trade - real-time Solana market data, very fast and much cheaper
Honorable Mention:
@bento_guard
@fhenix
@SolanaTestForge
@stardotfun
Which project should be on this list? Tag it below 👇
Coldstar retweeted
daily early projects ◼️
@isometricfi — Options that trade like perps: advertised exposure up to ~1,000x, no early liquidation, settlement based on the expiry price. On Arbitrum Sepolia testnet; featured in Arbitrum Autumn.
@swishdotcash — Private USDC/SOL transfers on Solana via X handles or claim links, integrating Privacy Cash, MagicBlock and Umbra. Selected for Adevar preaudit support.
@coldstar_sol — Turns a USB device into a Solana offline signer. The project says keys exist only briefly during signing. New website live; Web/iOS release status still unconfirmed.
@treasures_io — Aggregates tokenized-stock quotes across issuers and chains, routing trades from USDC. Recently launched its Signals API for AI agents.
@MentionedMarket — Trade on whether a word gets mentioned during livestreams, podcasts or earnings calls, with USDC settlement on Solana. Selected for Adevar preaudit support.
@bitrepo_xyz — Building around BTC-backed borrowing and credit allocation. Selected for Base Batches 004; Demo Day scheduled for November 18.
@FairHatch — A fair-launch platform on Robinhood Chain, advertising equal-start access, liquidity locking and anti-bot mechanics. Public testnet live.
@staycloakedxyz — One wallet, a fresh address for each payment received, with private transfers through Privacy Pools. Browser extension available on Ethereum, Base and Optimism.
Verify before you ape.
Coldstar retweeted
CastleDAO, in their own words 🏰
Two weeks on, we’re looking back at some of the builders who called @cstldao home.
Meet some of the residents ⬇️
Coldstar retweeted
Guys, this may be one of the most exciting demo days taking place in recent times
Got to know a lot of the founders at the castle over the last week and they're all top tier contenders
Tune in!!
xitter.gq/i/broadcasts/1qJVmyzYq…
Coldstar retweeted
🚨 CRITICAL ETH SECURITY UPDATE
A critical vulnerability has been discovered in the Ethereum app on Ledger hardware wallets.
The flaw could allow a malicious application to alter ETH transaction details during signing without the change being visible on your Ledger device screen.
Fixed in Ethereum app v1.22.2
If you use Ledger for ETH or Ethereum assets:
• Update the Ethereum app to v1.22.2+
• Update Ledger Live
• Update your Ledger firmware
• Avoid signing transactions until everything is updated
If you hold ethereum:native on Ledger, update ASAP.
🚨Critical security update for LEDGER hardware wallets
A critical vulnerability has been identified in the Ethereum app on Ledger hardware wallets. It could allow a malicious application to alter the details of a transaction during signing, without this being visible on the device screen.
This has been fixed in Ethereum app version 1.22.2. If you use a Ledger device, please update ASAP
While you're in there, it's also good practice to make sure Ledger Live and your device firmware are fully up to date.
Coldstar retweeted
EasyA is bringing you one of the most important hackathons in history.
We’re headed to the UK Parliament! 🇬🇧
And we’re giving top founders the chance to pitch their projects to the world’s most influential policymakers.
Spots are very, very limited.
Apply now 👇
parliament-hackathonxeasya.e…
Coldstar retweeted
🧠🧠🧠
Solana is about to replace its entire consensus. Finality drops from 12.8 seconds to ~150 milliseconds.
I have been testing Alpenglow on the community cluster since its first genesis - so I wrote the longread I wish existed: what changes, why it matters, and how it looks from the inside.
cryptovik.info/news/solana-a…
Coldstar retweeted
Latest News - solana:hhB7CZU8rtKgaNoQu8a4DoBkQJTuUZy8Z1nB9CSEASY
@buildcoldstar has weighed in on recent discussions around hardware wallet security, emphasizing that air-gapped devices do not eliminate risk when they rely on single-signer setups.
The project notes that the signing configuration itself represents a larger structural vulnerability than the hardware, whether the device is air-gapped or not. Coldstar’s own design incorporates air-gapped signing by default while aligning with the broader industry view that multi-signature approaches offer stronger protection than single-key custody. As a Build Your Own Hardware initiative on Solana, the team continues to advocate for more resilient custody models. This perspective reinforces ongoing efforts to improve security practices across the ecosystem. Community conversations around eliminating single-signer reliance highlight the need for more robust wallet architectures.
Coldstar remains focused on advancing practical hardware solutions that prioritize secure signing environments. Further developments in multi-party and air-gapped tooling are expected as the project progresses.
For all the latest Solana tech news, check out techterminal.info/news. We track and cover updates from over 200+ Solana tech projects in one place.
Coldstar retweeted
Assets update is going to take a little longer 🥲
Been trying to ship this on my own but it’s been a big task for just one engineer.
However, you can come in and help us build!
Apply Now:
superteam.fun/earn/listing/c…
Coldstar retweeted
Sonar Spaces kick off today.
Every Thursday, we'll have an intimate conversation with a builder who's shipping through the bear.
Episode 1: "Cold Storage, Hot Takes", featuring @expertvagabond, co-founder of @buildcoldstar, and Sonar CEO @Prtctr1.
15:00 UTC / 11am ET. Set a reminder below.
xitter.gq/i/spaces/1dxYllwAblgJX
🤖 Made with AI
Coldstar retweeted
An amazing turn out for the 60 second pitch at @SuperteamUK cowork space today.
Massive thanks to @EasyA_Kickstart for coming to meet our amazing founders and startups.
Congrats to @buildcoldstar and the runner ups - amazing pitches
Coldstar retweeted
Introducing Blockchain x Quantum Hackathon in collaboration with @Fidelity (@FCATalyst) and Quantum Ireland.
€15,000 in prizes
23-24 May, @dogpatchlabs
Quantum computers capable of breaking today’s cryptography are getting closer to reality. While major blockchains are preparing to transition to post-quantum algorithms, there’s a critical issue flying under the radar: new cryptography brings new risks and unknowns. Now is the time to embrace crypto agility.
With @DublinTechWeek around the corner, there’s no better moment to get involved.
Coldstar retweeted
Massive thank you to our incredible hosts who made it all possible: @tbvxyz, @Hashlock_ & @8BlocksLabs!
To the VCs who showed up and brought the heat 🔥
Knox Investments, @CsquaredVC, @GondorCapitalIO, @RedBeardVC, @CerasVentures, @tokentus_AG, @NomadCapital_io, Atro Labs, @LightningCapAM, @coinfund, Sonlin Ventures, and more!
To the founders who went on stage: @buildcoldstar, @J0KUH, @tx_labs, REFI 2, @SIXR_cricket, Gainr & @SwapRoyale.
And to every founder, builder, investor, and operator who was part of this incredible night — thank you for making it epic! 🚀
Coldstar retweeted
@superteamIE projects pitched at @MonkeFoundry x @solana Demo Day.
@opsonchain and @buildcoldstar well done guys. Also shout to @craftsdev.
Excited about @colosseum .
Coldstar retweeted
Fantastic to witness the hard work @buildcoldstar, @opsonchain and @craftsdev are putting in, shipping to the max 🦾
At @MonkeFoundry x @Solana Demo Day in Miami 🇺🇸
@SuperteamUSA
