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Mujina

The Linux kernel of Bitcoin mining firmware

Mujina is an actively maintained, open-source Bitcoin mining firmware designed to be a drop-in replacement for proprietary firmware on existing hardware — while also serving as the standard for new open hardware designs.

GitHub Forum

Why This Is a Core Grant

Mining firmware controls every aspect of how a mining device operates: pool connections, power management, performance tuning, and more. The entire ecosystem currently runs on closed-source proprietary firmware, giving hardware manufacturers an additional lever of control over miners. Mujina breaks this dependency by providing a community-maintained open-source alternative.

Why It's Necessary

The proprietary firmware ecosystem creates multiple points of centralized control and censorship risk. Closed firmware can be silently updated to enforce pool restrictions, change performance profiles, or phone home with operational data. Mujina eliminates these risks by making the firmware fully auditable, forkable, and community-governed — analogous to what the Linux kernel is for operating systems.

Technical Details

Mujina is written in Rust on a Linux-based embedded OS, licensed under GPLv3. It supports Stratum V1 (with DATUM compatibility) and Stratum V2, and is designed to run on Ember One and Libre Board natively — while also providing best-effort compatibility with existing commercial hardware including Antminer, Whatsminer, and Avalon. Management interfaces include a web dashboard, HTTP REST API, CLI, and structured config files. The long-term vision is for Mujina to evolve into a complete, flashable Linux-based OS for Bitcoin mining hardware.

Key Specifications

Rust

Language

GPLv3

License

Linux

Base OS

Stratum V1 + V2

Protocol

Features & Compatibility

Protocol Support

→Stratum V1
→Stratum V2
→DATUM compatibility
→Multiple pool configs with failover

Hardware Compatibility

→Ember One hashboard (native)
→Libre Board (native)
→Antminer drivers
→Whatsminer drivers
→Avalon drivers

Management Interfaces

→Web dashboard
→HTTP REST API
→Command-line interface (CLI)
→Structured text file configuration
→Continuous integration framework

Community Discussions

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About the Mujina Firmware category

Open-source Bitcoin mining firmware. No dev fees, no closed parameters. Run any hashboard, any control board. Read every line, modify without permission. Own your firmware. Built in Rust. GPL licensed. Mujina is an ope…

0 replies·1mo ago

GitHub Activity

View on GitHub →

41 stars22 forks10 open issueslast push 11d ago

16a4549

docs(architecture): rewrite as high-level overview

Ryan Kuester · 11d ago

b20ddbf

chore(bm13xx): drop stale dissector TODO comments

Ryan Kuester · 12d ago

28fa9dc

refactor(pmbus): drop dissector-only value parsers

Ryan Kuester · 12d ago

2f712a7

refactor(emc2101): drop dissector-only pretty-printing helpers

Ryan Kuester · 12d ago

1dfa040

chore: remove mujina-dissect tool

Ryan Kuester · 12d ago

3e18512

docs(readme): freshen outline and update current state

Ryan Kuester · 12d ago

Project Team

Check the events calendar for developer office hours →

Ryan Kuester

@ryankuester

Lead Engineer

Firmware engineer with decades of Linux and embedded systems experience. Ryan brings deep low-level expertise to Mujina, building the open-source firmware foundation that the entire Bitcoin mining stack runs on.

Econoalchemist

@econoalchemist

Project Manager

Bitcoin educator, technical writer, and co-host of the POD256 podcast. Co-founder of the 256 Foundation and project manager across all four pillar grants.