Macnolo0x7D4's Nix Configuration

This repository contains Nix flake-based configurations for multiple hosts and environments, including NixOS (Linux), Nix-Darwin (macOS), and Home Manager (user-level).

Repository Structure

• flake.nix Flake definition that specifies inputs (nixpkgs, darwin, home-manager) and outputs (nixosConfigurations, darwinConfigurations).

• flake.lock Locked versions of flake inputs for reproducibility.

• lib/mksystem.nix Function to assemble a system configuration using nixosSystem or darwinSystem, integrating Home Manager.

• hosts/ Host-specific system configurations:

  • hosts/vm-aarch64.nix NixOS configuration for an aarch64 virtual machine.
  • hosts/ideapad.nix NixOS configuration for an x86_64 Ideapad laptop.
  • hosts/macbook-air-m1.nix Nix-Darwin configuration for an M1 MacBook Air.
  • hosts/hardware/*.nix Hardware-specific settings imported by the host configurations.

• modules/ Reusable NixOS modules:

  • modules/nix-core.nix Core Nix settings (flakes, Nix command).
  • modules/system.nix System-wide profiles (shells, basic programs).
  • modules/host-users.nix Default user creation and trusted user settings.

• users/<username>/ User-level configurations for user macnolo:

  • home-manager.nix Home Manager settings (packages, programs, shell aliases, XDG configs).
  • nixos.nix Extra NixOS settings for the user account (password, groups, packages).
  • darwin.nix Extra Nix-Darwin settings (Homebrew casks, user home).
  • config.nu Nu shell configuration.
  • i3, rofi, kitty, ghostty Configuration files for i3 window manager, Rofi launcher, Kitty terminal, and Ghostty.

Defined Hosts

The flake provides these outputs:

• nixosConfigurations.vm (aarch64 Linux VM)
• nixosConfigurations.ideapad (x86_64 Linux Ideapad)
• darwinConfigurations.Macnolo-Air (aarch64-darwin MacBook Air M1)

Prerequisites

• Nix 2.4 or newer with experimental features enabled:

  nix configure --experimental-features 'nix-command flakes'

• On macOS: nix-darwin installed.
• On Linux: Home Manager integration via flake.

Usage

Applying a NixOS Configuration

sudo nixos-rebuild switch --flake .#vm
# or for the Ideapad:
sudo nixos-rebuild switch --flake .#ideapad

Applying Home Manager (Linux Hosts)

home-manager switch --flake .#vm
# or
home-manager switch --flake .#ideapad

Applying Nix-Darwin Configuration (macOS)

darwin-rebuild switch --flake .#Macnolo-Air

Adding New Hosts

To add a new host:

1. Create a host configuration file under hosts/<name>.nix (and optionally a hardware file under hosts/hardware/).
2. Add a flake output entry in flake.nix, for example:

   nixosConfigurations."<name>" = mkSystem "<name>" {
     system = "x86_64-linux";
     user = "macnolo";
   };

License

This repository’s contents are provided as-is without warranty. Feel free to adapt and reuse.