The end.
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We’ve just open sourced the BCB100 on GitHub 🔥
The Braiins Control Board is now officially the Bitcoin Control Board.
Everything you need to build is now available:
— OpenWrt-based firmware with full config
— Hardware design files: BOM, schematics, Gerbers, CAD
— Nix environment for reproducible builds
— Mining binaries (bosminer, boser), same as in official Braiins OS releases
Repository:
🔗 Full README with docs, files, and build scripts is on our GitHub. Link in the comments.
Licenses:
🔶 Software — GPLv3
🔶 Hardware — CERN-OHL-S
🔶 Mining components — binary-only
Test units:
✅ We’re sending a few BCB100 boards to Bitcoin Park in Nashville for builders to explore and experiment.
✅ A few units will also be available soon on the Braiins Store, shipping fast from our US and EU warehouses with no customs hassle.
Bitcoin mining infrastructure needs more transparency and resilience.
This is how we help accelerate that mission 🫡
Let’s build.
🎄 This Christmas, meet Lukas Hozda.
Lukas Hozda is a bit like Yoda - if Yoda were a 23-year-old IT wizard with a love for Rust programming and Eurobeat music. Wise beyond his years, calm and confident with his words and actions while often leaving those around him in awe.
As our I.T methodologist, he advises developers and helps to create the company’s internal educational resources. In his spare time, he tinkers with tech, marvels at the natural beauty of the world and inspires people through his compassion and musings.
Lukas speaks several languages but is most well known for speaking an absolute load of crab. 🦀 By crab, we mean the Rust programming language. He develops and leads a Rust course at Braiins (which has already helped onboard five new employees).
He is also the author of the Braiin’s book ‘Building Bitcoin in Rust,’ which is a comprehensive guide to understanding bitcoin’s inner workings using the Rust programming language. 📕
His contributions are not just educational, they are foundational to the company’s mission.
It’s not just a love for education that runs in his veins, there’s trouble too. Good trouble. 😎
A proud member of a “problematic family” that loudly disagreed with the communists and nazis (which cost them dearly), this legacy of resilience means he isn’t afraid to shake things up when faced with corruption or complacency:
“It is better to suffer while trying to do something rather than to suffer from doing nothing.”
Lukas isn’t afraid to stand against the crowd, he is a bitcoiner after all. 💪
Quoting the alchemist’s words from Rosarium philosophorum, “our gold is not the common gold,” he knows that the true value of bitcoin will soon be clear to many and he is committed to clearing the path for those ready to seek it.
Whether he's writing code in Rust or shaping the minds of future developers, one thing is clear: Lukas is a rebel with a cause, and he's just getting started. 🚀
I swung by the Braiins office and got a sneak peak at what they’re announcing on Thursday.
If you’re at BTC Prague, go to their booth and check it out.
A thread of cringy writing examples that I came across in my teaching career. 🧵
I’m also including easy fixes that will hopefully help you write better.