This is a collection of the configuration files that I use with NixOS, a Linux distribution inspired by purely functional programming languages.
These configuration files reflect how I use NixOS on a daily basis; as such, they contain a lot of peculiar code not written for general use. If you find some of the techniques I use in these files to be useful, feel free to use them as a template for your own NixOS configuration.
My configuration is organized with two goals in mind: First, the configuration of several computers that I own is unified into this one repository with minimal duplication of effort. Second, everything necessary to provision a new machine from scratch is included along with a script to ease initial installation.
The machines/ directory contains a separate NixOS module for each
computer that I have configured with NixOS. Since each computer is used in
different settings, it is only natural that each of these modules is slightly
different.
A number of different configuration profiles are defined as NixOS modules in
the profiles/ directory. Each computer can import any number of different
profiles. This minimizes the duplication of effort when two or more computers
are commonly used for the same tasks. For instance, if I commonly use a printer
from either my laptop or my desktop, I can import the printing.nix profile on
those computers, while omitting it on my server.
I keep various configuration files for userland applications in the dotfiles/
directory. This allows me to keep the configuration files that I find
important, such as my VIM or Git configuration files, consistent across
computers.
Note that NixOS does not provide any built-in support for managing userland dotfiles. I simply create the dotfiles as symbolic links from a startup script.
I use the install.sh script to start a new installation from scratch. The
script is not perfect, but it attempts to identify computers I own and use the
appropriate hostname.
The rebuild.sh script is interesting because whenever nixrc changes are
applied by this script, the entire repository is copied to the /etc/nixos/
directory via the rsync utility. This is useful for keeping this Git
repository in an un-privileged directory and then moving it to the appropriate
privileged directory when needed.
As this repository does not really constitute a coherent product, I am releasing everything I have written here to the public domain without warranty of any kind. Note that some of the code in this repository may have been pulled from elsewhere; such code is the property of its respective copyright holder.