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MatthewCroughan / NixThePlanet

Run macOS, Windows and more via a single Nix command, or simple nixosModules
MIT License
572 stars 15 forks source link
automation hacking proprietary shitcode

readme


NixThePlanet

This is a Nix flake that allows you to run medieval operating systems, some new and some old. Some other candidate names for this flake were:

Inspired by the great Astro and his WFVM flake for building Windows VM images

It took at least a painstaking month to make this project. If you use this project and enjoy it, it would mean a lot if you could sponsor me via GitHub Sponsors, and whilst you're at it, why not sponsor Hercules CI too for making the CI in this repo so incredible.

This code was made whilst listening to Ｗｉｎｄｏｗｓ９６

Thanks

Massive thanks to the following for various kinds of help!

Prior Art

Without work such as OSX-KVM by Kholia, and macOS-Simple-KVM by Foxlet, a repo like mine could not possibly exist. To bootstrap the project, I use some of the OSX-KVM repo as a Flake input. It contains some qcow2 files that I don't know how to reproduce yet, as noted below in the TODOs.

As pointed out to me on Twitter, Cirrus Labs had made a Hashicorp Packer template to do similar automation by using VNC and Sleeps. The major difference between this and what I am doing, is that I use TCL Expect and Tesseract OCR to more reliably get the same result, without relying as much on sleeps/waits. Additionally, the CI for this repo runs the macOS installer 10 times whenever anything changes, to validate that nothing is broken, and that the function makeDarwinImage works reliably. There is also a NixOS test that boots the VM, in a VM, and tests that the macOS VM is able to be SSH'd into on port 22.

macOS

Currently, only macOS Ventura is supported, building will take *at least 40-50 minutes as the official 11GiB macOS installer is downloaded and used in the Nix sandbox. No user interaction is required. Be patient and sit tight.

Launch macOS Ventura with a single nix command

GTK

nix run github:matthewcroughan/NixThePlanet#macos-ventura

VNC (Port 5901)

You can pass QEMU flags like -vnc

nix run github:matthewcroughan/NixThePlanet#macos-ventura -- -vnc 0.0.0.0:1

Using the nixosModule

To enable the VM as a NixOS service via the nixosModule enable the macos-ventura module on a nixosConfiguration in your flake.nix

{
  inputs = {
    nixtheplanet.url = "github:matthewcroughan/nixtheplanet";
    nixpkgs.url = "github:nixos/nixpkgs/nixos-23.05";
  };
  outputs = { self, nixpkgs, nixtheplanet }: {
    nixosConfigurations.my-machine = nixpkgs.lib.nixosSystem {
      modules = [
        nixtheplanet.nixosModules.macos-ventura
        {
          services.macos-ventura = {
            enable = true;
            openFirewall = true;
            vncListenAddr = "0.0.0.0";
          };
        }
      ];
    };
  };
}

Using the makeDarwinImage function

This flake exports a function makeDarwinImage which takes a diskSizeBytes argument in order to influence the disk size of the resulting VM, it could be used like this in a flake.nix for example

{
  inputs = {
    nixtheplanet.url = "github:matthewcroughan/nixtheplanet";
    nixpkgs.url = "github:nixos/nixpkgs/nixos-23.05";
  };
  outputs = { self, nixpkgs, nixtheplanet }: {
    # Create a 60GB Darwin disk image, two ways of doing the same thing
    # x is accessing legacyPackages directly from the flake
    # y is applying the overlay from nixtheplanet unto its own instance of nixpkgs

    x = nixtheplanet.legacyPackages.x86_64-linux.makeDarwinImage { diskSizeBytes = 60000000000; };
    y = (import nixpkgs { system = "x86_64-linux"; overlays = [ nixtheplanet.overlays.default ]; }).makeDarwinImage { diskSizeBytes = 60000000000; };
  };
}

Using the makeDarwinImage function directly, you could increase the size of the macOS image used by services.macos-ventura.enable = true in your NixOS config as follows:

{ pkgs, ... }:
{
  services.macos-ventura = {
    enable = true;
    package = pkgs.makeDarwinImage { diskSizeBytes = 60000000000; };
  };
}

Windows/DOS

Each of the outputs in this flake have their own image builders and runScript.

They can each be passed the dosPostInstall argument arbitrary dos commands to be ran after Windows has been installed, for example here's how you can use them to build an image that adds win to the AUTOEXEC.BAT

Example
makeWin30Image {
  dosPostInstall = ''
    c:
    echo win >> AUTOEXEC.BAT
  '';
}

The runScript is a method of the image builder, for example makeWin30Image {}).runScript. Additionally there is a makeRunScript method which can be passed arguments like diskImage.

Example
(makeWin30Image {}).makeRunScript {
  diskImage = makeWin30Image {
    dosPostInstall = "echo foo";
  };
}

MS Dos 6.22

Launch MS Dos 6.22 with a single nix command

nix run github:matthewcroughan/NixThePlanet#msdos622

msdos622

Windows 3.0

Launch Windows 3.0 with a single nix command

nix run github:matthewcroughan/NixThePlanet#win30

win30

Windows 3.11 (For Workgroups)

Launch Windows For WorkGroups 3.11 with a single nix command

nix run github:matthewcroughan/NixThePlanet#wfwg311

wfwg311

Windows 98

Launch Windows 98 with a single nix command

nix run github:matthewcroughan/NixThePlanet#win98

win98

TODO

Known Issues

Notes

Notable changes to the OpenCore-Boot.sh script for the OSX-KVM repository that I am copy-pasting into this repo temporarily for bootstrapping purposes are:

I am also changing scripts/run_offline.sh to automatically partition the Disk, and not embedding it into the InstallAssistant, to allow for reconfiguration of the run_offline script in a separate derivation.

Reviews

Chris McDonough

In this review, Chris McDonough appears very excited. Apparently, NixThePlanet has the power to make grown men giggle.