https://github.com/alexghr/nix
My Nix configuration
https://github.com/alexghr/nix
home-manager linux nix nix-darwin nix-flake nixos
Last synced: about 1 month ago
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My Nix configuration
- Host: GitHub
- URL: https://github.com/alexghr/nix
- Owner: alexghr
- License: mit
- Created: 2021-11-05T08:36:18.000Z (over 4 years ago)
- Default Branch: main
- Last Pushed: 2026-05-01T08:36:25.000Z (2 months ago)
- Last Synced: 2026-05-01T10:25:42.721Z (2 months ago)
- Topics: home-manager, linux, nix, nix-darwin, nix-flake, nixos
- Language: Nix
- Homepage:
- Size: 733 KB
- Stars: 7
- Watchers: 1
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# Nix configuration
This repo contains the Nix configuration for the various machines I use. I'm
new to Nix/NixOS and its ecosystem so a lot of the code you'll see here might
not be its best.
## Flakes
When I first started using NixOS I used the standard configuration at
`/etc/nixos/configuration.nix`. This worked well for me while I was managing
only one machine. As I installed Nix on more and more machines I wanted a more
elegant way to manage shared configuration. So I arrived at Flakes.
This repo is a mix of Flakes and non-Flakes configuration, but most of the
hosts I use daily have been converted to Flakes.
For an intro to flakes I recommend the [original Tweag Flakes intro] on using
Nix Flakes to manage a NixOS system.
For other example configs on Github, have a look at this list I made
[nix-configs].
## Btrfs & backups
In before people get triggered, I use Btrfs on all of my machines (including
a raspi's SDCard). It's great 👌
To prevent sadness in case something goes wrong in the future I back up daily
to Backblaze. See my custom [restic module] for that
## Hosts
The [./hosts] directory contains the configuration files for my machines.
- 🖥️ [vader] - Main NixOS install
- 💻 [mackey] - A macbook running [nix-darwin] & [home-manager]
- 
[hk47] -
A Raspberry Pi 4B in my closet. Mainly runs the Unifi controller
- 🖥️ [nix-1] - A Hetzner VPS. Runs k3s
## System management
Most of the time it boils down to this:
- make a change in this repo (e.g. add a new package, add a new env var)
- execute
```shell
$ sudo nixos-rebuild switch --flake /path/to/git/repo
```
alternatively, you can push the change to Github and run
```shell
$ sudo nixos-rebuild switch --flake github:alexghr/nix
```
`nixos-rebuild` will default to apply the `nixosConfiguration` named after the
current system's hostname, so the above command is equivalent to
```shell
$ sudo nixos-rebuild switch --flake github:alexghr/nix#$(hostname)
```
## Todo
- [x] remove stale hosts
- [x] migrate other machines to Flakes
- [x] setup CI (update flakes, push derivations to cachix, etc)
[original Tweag Flakes intro]: https://www.tweag.io/blog/2020-07-31-nixos-flakes/
[nix-configs]: https://github.com/stars/alexghr/lists/nix-configs
[restic module]: ./modules/restic/default.nix
[./hosts]: ./hosts
[vader]: ./hosts/vader/configuration.nix
[mackey]: ./hosts/mackey/darwin-configuration.nix
[hk47]: ./hosts/hk47/configuration.nix
[nix-1]: ./hosts/nix-1/configuration.nix
[stormtrooper]: ./hosts/stormtrooper
[wsltrooper]: ./hosts/wsltrooper
[nixtrooper]: ./hosts/nixtrooper/etc/nixos/configuration.nix
[nix-darmin]: https://github.com/LnL7/nix-darwin
[home-manager]: https://github.com/nix-community/home-manager