CachyOS is a high-performance Linux distribution based on Arch Linux that focuses on speed through advanced compiler optimizations and kernel tuning while maintaining rolling-release flexibility.

The main features of this tool include:

• CPU-Optimized Package Repository: Unlike generic distributions, CachyOS rebuilds its entire stack—from the kernel to individual packages—specifically for modern CPU instruction sets like x86-64-v3, x86-64-v4, and Zen4.

• Advanced Compiler Optimizations: It utilizes LTO (Link Time Optimization), PGO (Profile-Guided Optimization), and BOLT for core packages to deliver measurable performance gains without requiring users to perform manual rebuilds.

• Customized Kernel with Scheduler Choice: The distribution ships with the linux-cachyos kernel, which includes a tuned EEVDF scheduler and provides options for other advanced schedulers like BORE, sched-ext, BMQ, and RT.

• Flexible Installation Options: It offers two distinct workflows: a guided graphical Calamares-based installer for a user-friendly setup and a CLI installer for those who want full control over every detail.

• Broad Desktop & Window Manager Support: CachyOS supports over 17 environments out of the box, including popular choices like KDE Plasma, GNOME, and XFCE, as well as specialized window managers like Hyprland, Sway, and Niri.

• Independent & Community-Driven: It is an independent project supported by a core team and community donations, which fund high-speed mirrors, build servers, and continuous hardware testing.