What is Gentoo?
Gentoo is a totally free Linux distribution. It uses the latest development tools and software technologies and is dedicated to quality rather than blindly following traditional usage patterns with binary packages and config files. Every part of Gentoo, including installation images, is free software; most of the source code is available to whoever wants it. Gentoo has been developed in an entirely open process, in which technical choices are made via discussion in email forums and IRC channels rather than by secretive members of some elite development cabal. Each package in Gentoo has its own maintainer who decides whether or not to include it; you are welcome to volunteer to Gentoo.
What is Nix package manager?
Nix package manager solves the problem of inconsistent, incomplete package state by enforcing complete state by default. Nix provides atomic upgrades and rollbacks, side-by-side installation of multiple versions of a package, multi-user support, per-user profiles, and improved conflicts resolution. It also has powerful user environment management which makes it easy to work with multiple profiles.
Nix package manager alternatives for Gentoo
If you’re looking for Nix package manager alternatives for Gentoo, you could look into packagecloud as a method to handle all of your package management. This means that you won’t need a handful of package managers for Nix package manager or distributors for Gentoo to get the packages you need. Packagecloud can manage all of your packages in one place so you always know they’re secure and accessible.