Build a Neobank from a USB - Somerset House Workshop Featuring ColdStar

​ColdStar is Coming to Somerset House ❄️

​Join us for a hands-on workshop where you’ll learn how to build your own hardware wallet — a disposable, USB-based cold signing device designed for secure, verifiable self-custody on Solana.

​Date: Friday, 24th April 2026
Time: 2:00PM
Venue: Somerset House, London

​Expect a practical, builder-focused session where you’ll go from zero to a fully working hardware wallet. You’ll flash your USB, generate keys securely, and execute real transactions using Coldstar’s CLI. The workshop is structured to be accessible for non-technical attendees while still giving developers a clear understanding of the underlying model.

​By the end of the session, you’ll leave with:

• ​Your own Coldstar wallet on a USB drive

• ​A clear understanding of cold signing and key management

• ​Practical experience using Solana CLI-based workflows

• ​A foundation to integrate Coldstar into your own setups or projects

​About Coldstar.dev

​Coldstar is a CLI-first cold wallet system that turns any USB drive into a secure, disposable signing device. Private keys are encrypted at rest and only decrypted in RAM during transaction signing, reducing persistent attack surfaces and removing reliance on proprietary hardware

​​About Solana

​​Solana is a proof-of-stake blockchain built for mass adoption ◎ Fast, composable, green, and globally distributed.

​​Hear from RockawayX about Why Solana.​

​About Superteam UK

​​​Superteam is a global co-operative organised into regional non-profit organisations across 20+ countries focused on supporting founders and talent building at the frontier of tech.

​​​​​​For more info, reach out to us on the Solana UK Telegram.

​​​​​By signing up to this event you agree that SuperteamUK can capture any footage of you, and contact you directly about future events, major news, and more.