NixOS allows to easily build images of a machine configuration. This post shows in an example how to build a more recent version of the base image which NixOPS uses to spin off Virtualbox based machines. The idea should be applicable to all kinds of machine configurations.

Quick note about the needed bits to get remote building for Nix into a working state on OSX.

Notes from the NixOS-Meetup in November 2016 in Berlin, focusing on pip2nix and pypi2nix.

My personal collection of Nix related jokes in German. Can't help myself, I still like those ;)

Upgrading old NixOS machines can lead to a situation where the rebuild fails due to an unknown hash algorithm. This post shows a workaround to get started again.