What is open-source Bitcoin mining? Bitaxe, NerdQaxe & AxeOS explained

Open-source Bitcoin mining means: both the hardware blueprints and the firmware source code are openly visible and freely usable. With devices like the Bitaxe or the NerdQaxe range you can therefore see exactly what your miner does – and adapt, repair or develop it yourself if needed. It is the counter-design to the closed black-box devices of the big manufacturers.

How is an open-source miner built?

At its core sits a modern mining ASIC – in the Bitaxe Gamma and the NerdQaxe models the efficient BM1370, the same chip that also works in current industrial miners. It is controlled by a small microcontroller (ESP32) that handles WLAN, display and the web dashboard. A single Bitaxe uses one ASIC, the NerdQaxe ++ bundles four, the NerdOctaxe eight – more chips mean more hashrate at the same efficiency.

The firmware: AxeOS

All these devices run AxeOS, an open firmware with a clear web dashboard. Through it you see hashrate, temperature and efficiency in real time, enter your mining pool and set frequency and voltage yourself. There is no cloud requirement, no manufacturer account and no hidden telemetry. Updates come from the community and can be installed directly in the dashboard.

Where does all this come from?

The Bitaxe project grew out of the open-source hardware community around Bitcoin and has developed into a whole ecosystem: Bitaxe, Nerdaxe, NerdQaxe, NerdOctaxe and numerous accessories share open standards. Because the designs are open, new variants, cooling solutions and improvements constantly emerge – driven by an active, worldwide community instead of a single corporation.

Why open is better

• Control: you really own the device – no black box, no vendor lock-in, no remote shutdown.
• Transparency: the code is public; bugs and security gaps are spotted and fixed faster.
• Longevity: an active community keeps developing firmware and accessories – even years after purchase.
• Repairability: open plans make maintenance, spare parts and upgrades easy.
• Privacy: your miner does not phone home; you decide what it does.

Who is this for?

For everyone who wants to not just hold Bitcoin, but understand and actively support it. Open-source miners are cheap to get started with, quiet enough for the home and ideal for learning the technology behind Bitcoin in practice. You need no computer science degree – just curiosity and a WLAN.

Open hardware means: you learn, you control, you own. That is exactly what we stand for.

Ready to get started yourself? The Bitaxe Gamma 601 is the most popular entry, and our big guide to Bitcoin mining at home walks you through every step.