Install NixOS

As a new user it's often difficult to get NixOS installed because you may need a wired connection, which can be impractical.
One solution is to create your own NixOS installer that already has WiFi drivers baked into the image along with any other packages that you already know that you want.

Creating a NixOS installation this way ensures that the ISO image already contains the Nix store that you need to boot into a fully functioning machine, which can be used as a first install or a rescue image.

This tutorial would follow the tutorial on installing NixOS in a VM, and would walk a user through the process of:

• Taking an existing configuration.nix (from the previous tutorial)
• Producing a bootable image (ISO format) https://nix.dev/tutorials/nixos/building-bootable-iso-image
  • I consider it a requirement that this also cover building for a different system e.g. building an x86_64-linux image on aarch64-darwin.
• Booting that and then referring to another tutorial for installation (disk partitioning etc)

Start with the existing NixOS-in-a-VM installation tutorial and the linked “Building bootable ISO image” tutorial. Define the new tutorial around using an existing configuration.nix, producing an ISO including WiFi drivers and packages, cross-building for another system, and handing off disk installation and rescue-image steps to the referenced tutorial.