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.
What is Kubuntu?
The Kubuntu distribution is a spin-off from Ubuntu, which aims to create a new user-friendly desktop system using the Linux operating system. Kubuntu comes with the KDE Plasma Desktop Environment installed by default and provides users with similar functionality and visual appearance (a 'look-and-feel') to other current popular operating systems such as Windows XP and Apple's Mac OS X.
Publish Kubuntu packages on Nix package manager with packagecloud
If you’re looking to publish Kubuntu packages on Nix package manager, you can use packagecloud to handle all of your package management. Packagecloud works with all kinds of packages, not only Kubuntu packages. With packagecloud you can manage all of your packages from various OS’s, languages, and more. Always trust that your packages will be secure when you publish your Kubuntu packages on Nix package manager via packagecloud.
Nix package manager also integrates with

Archlinux

CentOS

Debian

Fedora

Gentoo

Java

Javascript

Lubuntu

Manjaro

OpenSUSE

Python

Red Hat

Red Hat Enterprise Linux

Ruby

Slackware

SuSe

Ubuntu

Xubuntu

Archlinux

CentOS

Debian

Fedora

Gentoo

Java

Javascript

Kubuntu

Lubuntu

Manjaro

OpenSUSE

Python

Red Hat Enterprise Linux

Red Hat

Ruby

Slackware

SuSe

Ubuntu

Xubuntu