NixOS Config for most of my systems (Asahi Linux, macOS, NixOS server)

Overview

This repository contains the configurations for my systems. Currently, an Asahi Linux + macOS nix-darwin M1 macbook, and a homelab server.

Table of Contents

• Overview
• Layout
• Building and Deploying
  • For macOS (Feb 2024)
    • Build check
    • Make changes
  • Other systems

Layout

.
├── apps         # Nix commands used to bootstrap and build configuration
├── configs      # Normal .config/ configurations I call inside of Nix (set as XDG_CONFIG_DIR)
├── hosts        # Host-specific configuration
├── modules      # NixOS, nix-darwin, and shared configuration
├── secrets      # Secrets handling with sops-nix
└── overlays     # Drop an overlay file in this dir, and it runs. So far, mainly patches.

Building and Deploying

For macOS (March 2024)

This configuration supports both Intel and Apple Silicon Macs.

1. Build check

Ensure the build works before deploying the configuration, run:

nix run .#build

Note

If you're using a git repository, only files in the working tree will be copied to the Nix Store.

You must run git add . first.

Warning

You may encounter error: Unexpected files in /etc, aborting activation if nix-darwin detects it will overwrite an existing /etc/ file. The error will list the files like this:

The following files have unrecognized content and would be overwritten:

  /etc/nix/nix.conf
  /etc/bashrc

Please check there is nothing critical in these files, rename them by adding .before-nix-darwin to the end, and then try again.

Backup and move the files out of the way and/or edit your Nix configuration before continuing.

2. Make changes

Alter your system with this command:

nix run .#build-switch

Other Systems

They work as normal NixOS systems, so for instance, for my Asahi system:

nixos-rebuild switch --flake .#asahi