SlyOS is a Linux distribution designed for enthusiasts seeking a system that is both lightweight, efficient, and accessible. Based on Arch Linux, it breaks away from the norm by combining OpenRC, an alternative init system, with ReGreet and a new window manager named Niri. This trio offers a new experience, far from usual habits like systemd, providing precise control and extensive customization.
The project, still in active development, positions itself as a practical alternative to traditional distributions. It is aimed at those who want to understand their system and immerse themselves in an environment designed for the desktop, without compromising ease of use.
SlyOS: Arch Linux reimagined with OpenRC at the core of init
OpenRC replaces systemd as the initialization system here. Based on a dependency model, it is appreciated for its lightness and simplicity. Born in the BSD universe and carried within projects like Gentoo, it stands out for its POSIX compatibility and clear scripts.
Choosing OpenRC means opting for a flexible init, without unnecessary heaviness. This sometimes requires a bit more effort in configuration, but the reward is a great mastery of launched services. It is a return to basics, when init meant rigor and transparency. To explore the subject further, the official OpenRC documentation is an essential resource.
OpenRC: a well-considered choice for ensuring stability and performance
In the Arch universe, systemd dominates widely, but SlyOS plays the card of functional sobriety. The switch to OpenRC forbids some ultra-sophisticated automation, yes, but emphasizes robustness. It’s like preferring a well-rehearsed tractor over a cutting-edge race car that can break down at any moment.
This philosophy is found in the SlyOS project: a “oiled” system designed to last and exuding simplicity. The heritage of Arch Linux guarantees a solid foundation and regular updates. An interesting alliance for those who want to avoid convoluted systems.
ReGreet: a modern graphical interface tailored for greetd for streamlined sessions
The session manager, often overlooked, plays a key role in the fluidity of the user experience. ReGreet brilliantly addresses this gap. It is a minimalist GTK4 interface, written in Rust, designed for greetd, a lightweight display manager fully compatible with Wayland composites.
The bet here is to present an efficient, modern, and responsive login screen, without overloading the system. This visual sobriety contributes to a fast and smooth startup. Those curious about the mechanics can consult the page dedicated to greetd on ArchWiki.
Why ReGreet and greetd form a coherent duo
greetd, by nature, is designed to launch any session directly from the console. Its integration with ReGreet offers an elegant and functional window without superfluous additions. It is a marriage of efficiency and aesthetics, rare in the ecosystem.
This approach simplifies session management and offers an interesting alternative to the classic GDM, SDDM, or LightDM used in most distributions. It quickly becomes apparent that SlyOS focuses on lightness and speed at every stage. Something sufficiently rare in 2026 to deserve a look!
Niri: a window manager designed for simplicity and efficiency
The Niri window manager, developed specifically for SlyOS, stands out for its lightness and ergonomics designed for the desktop user. Unlike heavy or overly complex managers, Niri offers a smooth experience, suitable for those who want precise control without getting lost in endless settings.
Focusing on a clean interface, Niri is among those that allow the system to breathe and, above all, keep the user focused. This balance between simplicity and control is a rare gem in the world of customized window managers.
The impact of Niri on the user experience of SlyOS
By bringing together OpenRC for init, ReGreet for sessions, and Niri for window management, SlyOS offers a coherent sequence. The system avoids heaviness, often a Achilles’ heel in so-called “ready-to-use” distributions. Here, each component is chosen for its reliability and speed.
This choice, however, raises a consequence: users coming from more conventional distributions will need to adapt to this more “artisanal” style of the graphical environment. But this learning curve is also a step towards a better understanding of Linux. As they say in the countryside: just because the road is muddy doesn’t mean it doesn’t lead to a beautiful barn.
SlyOS, a control interface designed for system mastery
The Thymbr control center gathers the essential settings in a unified interface. Well thought out, it allows modifications to the system’s behavior without going through the command line, making SlyOS more accessible to the less experienced while also allowing experts to delve under the hood.
The need for such a tool is often felt on systems where the init is different, and where each parameter may require fine-tuning. Thymbr meets this need, prioritizing the balance between ease of access and advanced control.
The project is hosted under a free license and is available for testing on the official SlyOS website, while the archiso configuration is available on Codeberg. A great initiative that reminds us that mastering a system also involves transparency.
The world of Arch-based distributions is vast. To choose a good base, this work on OpenRC and on the streamlining of components really deserves a glance, especially if you are looking for an installation somewhat different from the usual ones as listed here, for example, at Progiciels Mag.
What is OpenRC and why use it on Arch Linux?
OpenRC is a lightweight, dependency-based initialization system, offering a simpler and more transparent alternative to systemd. Its use on Arch Linux in SlyOS allows for better control over booting and services, at the cost of a slightly more manual configuration.
What is greetd and why is ReGreet important?
greetd is a lightweight display manager that manages session openings with minimum resources. ReGreet provides a modern GTK4 graphical interface that integrates perfectly with greetd, ensuring a smooth and fast user experience.
How does Niri differ from other window managers?
Niri focuses on simplicity, lightness, and ergonomics. Unlike complex managers, it aims to provide a streamlined desktop environment that gives the user plenty of space without overloading the system.
Is SlyOS suitable for beginners?
SlyOS is not intended for complete novices. However, thanks to tools like the Thymbr control center, it remains accessible for those who want to learn and understand their system in depth, provided they are willing to accept a certain learning curve.
How to access the sources and test SlyOS?
The project is open and freely available. The official website offers the necessary images and documentation to install and test SlyOS, while the archiso configuration is publicly accessible on Codeberg.
Source: linuxfr.org