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<p align="center"> <a href="https://seedsigner.com/"> <img alt="Gitea" src="docs/img/logo.png" width="90"/> </a> </p> <h1 align="center">SeedSigner OS</h1> <p align="center"> <a href="https://opensource.org/licenses/MIT" title="License: MIT"> <img src="https://img.shields.io/badge/License-MIT-blue.svg"> </a> <a href="" title="Twitter"> <img src="https://img.shields.io/twitter/follow/seedsigner?style=social"> </a> </p> <br/>

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Overview

A custom linux based operating system built to manage software running on airgapped Bitcoin signing device. SeedSigner is both the project name and application running on airgapped hardware. This custom operating system, like all operating systems, manages the hardware resources and provides them to the application code. It's currently designed to run on common Raspberry Pi hardware with accessories. The goal of SeedSigner OS is to provide an easy, fast, and secure way to build microSD card image to securely run SeedSigner code.

⚙️ Under the Hood

SeedSigner OS is built using Buildroot. Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. SeedSigner OS does not fork Buildroot, but uses Buildroot with custom configurations to build microSD card images tailor made for running SeedSigner.

🛂 Security

SeedSigner OS is built to reduce the attack surface area and enable additional application functionality. The OS is an order of magnitude smaller in size than Raspberry Pi OS (which is what typically is used to run software on a Pi device). Here are a list of some security and functional advantages of using SeedSigner OS.