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CachyOS
CachyOS with the KDE desktop environment
Developer	CachyOS Team
Written in	C, C++, Python
OS family	Linux (Unix-like)
Working state	Current
Source model	Open-source
Initial release	2021; 5 years ago (2021)
Latest release	Rolling release / March 8, 2026 (2026-03-08)
Repository	github.com/CachyOS
Available in	Multilingual
Package manager	Pacman
Kernel type	Monolithic (Linux kernel)
Default user interface	KDE Plasma[a]
License	GPLv3
Official website	cachyos.org

CachyOS is an Arch Linux-based Linux distribution focused on performance optimization and low-latency computing.^[1] It follows a rolling-release model and provides preconfigured system components intended to improve responsiveness and usability compared to a standard Arch Linux installation.

The distribution includes its own repositories and utilities, such as tools for simplified system maintenance and installation, and supports multiple desktop environments with KDE Plasma as the default.

In 2025, CachyOS gained wider attention after reaching the top position on DistroWatch’s Page Hit Ranking.

The project originated from work on the cacULE scheduler (originally named "Cachy"), a CPU scheduler focusing on responsiveness. Following the development of x86-64-v3 optimization standards, the founders Peter Jung (ptr1337) and Vladislav Nepogodin (vnepogodin) aimed to create a fully optimized distribution.^[2]. The first public release occurred in July 2021.^[3]

CachyOS provides a streamlined and user-friendly experience while incorporating performance-oriented optimizations and a custom kernel.

In order to simplify chroot operations on existing CachyOS or Arch Linux–based systems, cachy-chroot was created. It detects available disk partitions, including Btrfs subvolumes, and assists in preparing them for access. The tool also supports systems using LUKS encryption by associating entries from fstab with corresponding crypttab configurations and ensuring that encrypted volumes are properly closed upon exiting the chroot environment.^[4]

CachyOS offers two installation methods: a graphical installer (GUI) and a command-line interface (CLI). It supports multiple bootloaders, including Limine (the default), GRUB, systemd-boot, and rEFInd.^[5]. Like its parent distribution Arch Linux, CachyOS uses the Pacman package manager, along with its own repositories containing optimized packages.

CachyOS is a rolling-release Linux distribution and does not use fixed version numbers. Installation images (ISOs) are periodically published as snapshots of the current system state, incorporating updated packages, kernel versions, and installer improvements.

CachyOS is primarily distributed with the KDE Plasma desktop environment by default. Additional editions and configurations are available, including GNOME, Xfce, and Hyprland.

A specialized "Handheld Edition" is also provided, targeting devices such as handheld gaming systems, with preconfigured settings optimized for controller input and performance.^[14]

CachyOS has received coverage in technology media for its focus on system responsiveness and optimization. Reviewers have highlighted its use of performance-oriented configurations, including custom kernel tuning and optimized package builds.

In 2025, CachyOS gained increased visibility after reaching the top position on DistroWatch’s Page Hit Ranking, surpassing Arch Linux.^[15]

Coverage has also noted the project’s emphasis on delivering a balance between performance enhancements and usability, particularly through its installer and preconfigured system tools.

• List of Linux distributions § Pacman-based

Wikimedia Commons has media related to CachyOS (Linux distribution).

• Official website

Category:Arch-based Linux distributions Category:Free and open-source software Category:Linux distributions Category:Pacman-based Linux distributions