If on a new laptop, install NixOS normally, and then create a new module in hosts/ using the hardware configuration generated by the Nix installer. Then:

git clone git@github.com:owickstrom/nixos ~/nixos

• spruce

  sudo nixos-rebuild switch --flake "$HOME/nixos#spruce"
  

• antithesis-laptop

  sudo nixos-rebuild switch --flake "$HOME/nixos#antithesis-laptop" --impure --option substituters 'https://cache.nixos.org'
  

• antithesis-desktop

  sudo nixos-rebuild switch --flake "$HOME/nixos#antithesis-desktop" --impure --option substituters 'https://cache.nixos.org'