Roos

Decentralized Systems Engineer

About

I’m a technologist passionate about FOSS, functional programming, decentralized systems, and embedded technologies.

I’m actively developing practical applications on top of Bitcoin and decentralized finance, with a focus on solving real-world problems. I’m also open to exploring and supporting technologies that align with this goal.

I’m always curious about how systems are built—from overall design down to the implementation details. My experience includes Haskell, Nix, Rust, Android development, blockchain integration, microservices orchestration, and infrastructure operations. I’m also interested embedded and low-power technologies like ESP32s, FPGAs, and LoRa.

In my free time, I contribute to open source projects like Nixpkgs, support efforts to grow blockchain adoption, and study the RF environment around me.

Speaking at

Events

01 DARK Prague Prague, Czech Republic Oct 3–5, 2025 #DPRG

Discover More

Other Speakers

ELSIRION

Fedimint / Cryptoanarchist

ELSIRION

Fedimint / Cryptoanarchist

Elsirion is a Crypto-Anarchist and aspiring Cypherpunk developing mostly on Rust and researching cryptography and distributed systems with the goal of making Bitcoin more private and accessible at the same time. He is interested in everything that enhances personal freedom.

KETOMINER

NODL / Full-Stack Builder

KETOMINER

NODL / Full-Stack Builder

"Full stack" person (electronics to code to networks). Started with electronics and programming at age 7, moved to networking when Internet became mainstream. Built several hosting companies and now applying accumulated knowledge in the Bitcoin space after discovering myself being a crypto anarchist at HCPP17.

NOGOODKID

ROBIN THATCHER

By the Book Accountancy / Bitcoiner, accountant & crypto tax specialist

ROBIN THATCHER

By the Book Accountancy / Bitcoiner, accountant & crypto tax specialist

I’m Robin Thatcher, a Bitcoiner who happens to be an accountant. Through By the Book Accountancy and CryptoTaxHelp.co.uk, I help individuals and companies operating in the Bitcoin space navigate tax without surrendering sovereignty. My work focuses on defending Bitcoiners from creeping financial surveillance, decoding regulatory frameworks, and building strategies that honour the principles of self-custody, […]