step0:
> Enter the nixos livecd environment
step1:
$ nix run nixpkgs#git clone https://github.com/Ruixi-rebirth/flakes.git --extra-experimental-features nix-command --extra-experimental-features flakes
step2:
$ cd flakes; rm -rf .git
step3:
$ nix develop --extra-experimental-features nix-command --extra-experimental-features flakes
step4
$ just disko
step5
$ just install