This is my personal collection of configuration for NixOS machines. It is intended to be sanely structured and relatively easy to follow.
You'll want your own repository for this. Generally, I follow the NixOS Manual
until right after the nixos-generate-config, copy
/etc/nixos/hardware-configuration.nix to a safe place, clone this repo as
/etc/nixos/ and turn that hardware-configuration.nix file into a file in
the machines folder. All that's left then is to run
echo -n HOST > /etc/nixos/hostname with the name of the file in machines.
This repository is currently divided up in machines and profiles. Machines are per-machine declarations, such as what device the bootloader lives on, and specific hardware support. Profiles are generic functional declarations of packages I want installed and configurations for them.
Hiro is my main laptop. The configuration is for a Luks-encrypted ZFS pool, which is booted in UEFI-mode using gummiboot. It includes the default, desktop and project profiles, see below.
Raven was the machine I used to develop these profiles in a VM before fully switching over. It is incomplete and will likely be deleted soon.
The default profile is intended to go on any machine I control, desktops and servers. It sets up my user with my SSH key, internationalization, OpenSSH, NetworkManager, and installs a bunch of packages I like to have available.
The desktop profile goes on all my machines that end up being used with a monitor, such as desktops and laptops. It sets up the X server, the SLiM display manager set to auto-login to my user and boot into awesome, and various packages I like to use.
I set up the project profile because I tend to end up having to install a bunch of packages for a project or a job that I won't need any more once I'm done with it. Most of these things go into a nix-shell, but some I need globally available. By putting them in a separate profile I know exactly what file to go through and clear out when I stop working somewhere.