secureblue

secureblue is an immutable, security-focused desktop and server Linux operating system based on Fedora Atomic Desktop's base images - Silverblue, Kinoite and Sway Atomic. The project's goal is to build a maximally secure Linux operating system by proactively increasing defenses against the exploitation of both known and unknown vulnerabilities, while avoiding sacrificing usability for most use cases. Some of the security hardening features include a global hardened memory allocator developed by GrapheneOS, a security-focused Chromium-based browser called Trivalent, and Linux kernel hardening via sysctl and kernel arguments.