🔒 XmrSigner: Build Your Own Air-Gapped Monero Hardware Wallet

Build your own secure, air-gapped Monero hardware wallet for less than a cup of coffee per day. Perfect for privacy-conscious individuals who want complete control over their digital assets.

🚀 Why XmrSigner?

XmrSigner empowers you to create a truly air-gapped Monero signing device using affordable, off-the-shelf hardware. Born from the battle-tested SeedSigner Bitcoin project, XmrSigner brings the same level of security and sovereignty to the Monero ecosystem.

🛡️ Key Security Features

• Truly Air-Gapped: No WiFi, no Bluetooth, no backdoors
• Stateless Design: No persistent storage of sensitive data
• Open Source: Every component is verifiable and transparent
• DIY Approach: You build it, you trust it

✨ Flagship Features

• 🎲 Create secure seeds using dice rolls or camera entropy
• 📷 Live preview for QR scanning and seed generation
• 🔐 Support for both 25-word Monero seeds and 16-word Polyseed phrases
• 🌐 Compatible with Mainnet, Stagenet & Testnet
• 🤝 Integration with Feather Wallet and official Monero GUI
• 💻 Companion desktop application for seamless transaction handling

🛠️ Hardware Shopping List

Component	Specifications	Why This Matters
Raspberry Pi Zero	v1.3 (no WiFi/BT)	Maximum air-gap security
Waveshare LCD	1.3" 240x240px	Perfect size-to-usability ratio
Camera Module	OV5647 Sensor	Reliable QR code scanning

Estimated Total Cost: $40-50 USD

🏗️ Current Status

XmrSigner is currently in active development, with a strong focus on security and usability. Some exciting developments on the horizon:

• ✅ Core signing functionality
• ✅ QR code transaction parsing
• 🚧 Comprehensive documentation
• 🚧 Multisig support (planned)
• 🚧 Native C++ reimplementation

📸 The Device

Community-designed enclosure by @Go Brrr (website X)

The files to print the enclosure

🤝 Community & Support

• Join the Discussion
• Report Issues
• Contribute

⚠️ Important Notes

• Device takes ~60 seconds to boot (patience is a virtue!)
• Always test with testnet before handling real funds
• This is beta software - use at your own risk

📚 Related Projects

• XmrSigner OS - Custom operating system
• XmrSigner Emulator - Development testing environment
• XmrSigner Companion - Desktop integration app

🙏 Acknowledgments

This project stands on the shoulders of giants:

• SeedSigner - The original inspiration
• Monero Project - The privacy foundation
• Community contributors who make this project possible

📜 License

This project is licensed under the MIT License - see the LICENSE file for details.

Built with and ❤️ by the Monero community, for the Monero community