NixBSD is an attempt to make a reproducible and declarable BSD, based on NixOS. Although theoretically much of this work could be copied to build other BSDs, all work thus far has been focused on building a FreeBSD distribution.
Gentoo Alternatives
Gentoo is described as 'Linux is a versatile, fast, highly configurable and completely free Linux and FreeBSD distribution geared towards developers and network professionals' and is a very popular Linux Distro in the os & utilities category. There are more than 100 alternatives to Gentoo for a variety of platforms, including Linux, Self-Hosted, Windows, BSD and Mac apps. The best Gentoo alternative is Linux Mint, which is both free and Open Source. Other great apps like Gentoo are Ubuntu, Debian, Arch Linux and Fedora.
Alternatives list
A project providing a fully free (as in freedom) derivative of Arch Linux. Inheriting Arch's lightweight and flexibility, Parabola offers software freedom plus all power to the users.



Debian-based Linux OS emphasizing beauty and efficiency. Uses KDE Plasma 5, AppImages, and OpenRC instead of systemd. Integrated with Maui Apps and Liquorix kernel for high responsiveness. Includes Firefox, NX Software Center, comprehensive app suite, and hardware probing.



Redox is a Unix-like Operating System written in Rust, aiming to bring the innovations of Rust to a modern microkernel and full set of applications.


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- 170 Peppermint OS alternatives
Peppermint OS is a user-friendly operating system that prioritizes mobility, efficiency, and ease of use, allowing users to quickly connect, communicate, and complete tasks without the need for extensive setup or customization.


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- 199 Regolith Linux alternatives
Regolith Linux is a distro for people that prefer a spartan interface with polished and consistent system management. It brings together a trifecta of Ubuntu’s ubiquity, i3 -wm’s efficient and productive interface, and Gnome’s system...


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Featuring Linux Mint’s Cinnamon Desktop with Ubuntu at the core, packed fast and full of features, here is the most traditionally modern desktop you will ever love.



- 173 OpenMandriva Lx alternatives
The OpenMandriva distribution is a full-featured Linux desktop and server, sponsored by the OpenMandriva Association, and is based on ROSA, a Russian Linux distribution project which forked Mandriva Linux in 2012.



- 54 AnduinOS alternatives
AnduinOS is a custom Ubuntu-based Linux distribution that aims to facilitate developers transitioning from Windows to Linux by maintaining familiar operational habits and workflows.


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CRUX is a lightweight GNU/Linux distribution for the x86-64 architecture targeted at experienced users. The primary focus of this distribution is keep it simple, which is reflected in a straightforward tar.



Comments about CRUX Linux as an Alternative to Gentoo

- CRUX Linux is Free and Open Source
- CRUX Linux is Lightweight and Minimalistic
- 176 Trisquel alternatives
Trisquel is a computer operating system, a GNU + Linux distribution, derived from another distribution, Ubuntu, which is derived from Debian.


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Netrunner is an Debian -based distribution with a focus on desktop computing. It boasts a carefully tuned KDE Plasma Plasma 5 desktop.


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a minimal source-based distribution with perhaps the clearest, most transparent and simple layout among all source-based systems and Unix-like OSes in general