Download NixOS (official documentation)
Be careful to choose the right CPU architecture.
Create new virtual machine using Parallel Desktop or VirtualBox.
Create shell where Git is present:
nix-shell -p git
Clone repository:
git clone https://github.com/daniel-mizsak/mtjd.git ~/mtjd
Run NixOS configuration based on CPU architecture:
sudo nixos-rebuild switch --impure --flake ~/mtjd/nix#vm-arm
or
sudo nixos-rebuild switch --impure --flake ~/mtjd/nix#vm-amd