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NixOS Configs

This repo stores my NixOS and Nix on Darwin setup.

NixOS configs are here: ./nixos

Nix on Darwin configs are here: ./darwin

Using custom modules

My custom modules expose a heywoodlh configuration parameter. Here's an incomplete example snippet for using my modules in a flake:

{
  description = "heywoodlh nix config";
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
    darwin.url = "github:LnL7/nix-darwin/master";
    heywoodlh-configs.url = "/Users/heywoodlh/opt/nixos-configs";
  };

  outputs = inputs@{ self, nixpkgs, darwin, heywoodlh-configs, ... }: {

    darwinConfigurations = let
      heywoodlh-darwin-modules = (heywoodlh-configs + "/darwin/modules/default.nix");
    in {
      "my-macbook" = darwin.lib.darwinSystem {
        system = "aarch64-darwin";
        specialArgs = inputs;
        modules = [

          heywoodlh-darwin-modules

          {
            networking.hostName = "my-macbook";

            heywoodlh.darwin.sketchybar.enable = true;
            heywoodlh.darwin.yabai.enable = true;
            system.stateVersion = 4;
          }
        ];
      };
    };
  };
}

Documentation for module options can be viewed here: options.md

How to Use

Check out the outputs for this flake with this command:

nix flake show github:heywoodlh/nixos-configs

For some reason, the darwinConfigurations outputs aren't shown properly, so you'll have to manually check out ./flake.nix to figure out what MacOS outputs are available.

NixOS:

To install a NixOS configuration, let's assume the nixos-desktop-intel output, do the following:

sudo nixos-rebuild switch --flake github:heywoodlh/nixos-configs#nixos-desktop-intel

For VMs, use the NixOS graphical installer.

VMWare VMs:

Then run the install on the virtual machine:

sudo nixos-rebuild switch --flake github:heywoodlh/nixos-configs#nixos-vmware --impure

Make the following settings changes to the VM in VMWare Fusion:

Display:

  • Accelerate 3D Graphics
    • Shared graphics memory => maximum
  • Use full resolution for Retina display

Keyboard and Mouse:

  • Disable all host keybindings

Remove the Camera and Sound devices

Sharing:

  • Enable Shared Folders
    • Add MacOS $HOME

UTM VMs:

Use the following settings when setting up the VM:

Virtualize > Use Apple Virtualization > Enable Rosetta (x86_64 Emulation)

Use the copy-to-ram install option, then run through the graphical installer.

After the install, run the following command:

sudo nixos-rebuild switch --flake github:heywoodlh/nixos-configs#nixos-utm --impure

MacOS:

To install a MacOS configuration, let's assume the m3-macbook-pro output, do the following:

nix run "github:LNL7/nix-darwin#packages.aarch64-darwin.darwin-rebuild" -- switch --flake github:heywoodlh/nixos-configs#m3-macbook-pro --impure

Other Linux distributions:

Run the following command to use the Home Manager implementation on any Linux distribution with nix installed:

nix --extra-experimental-features 'nix-command flakes' run github:heywoodlh/nixos-configs#homeConfigurations.heywoodlh.activationPackage --impure

For headless Linux machines:

nix --extra-experimental-features 'nix-command flakes' run github:heywoodlh/nixos-configs#homeConfigurations.heywoodlh-server.activationPackage --impure