Adding how to add the nix-index to the nixos configuration or flakes

[osbm]

You know just like the README of vscode server repository.

Install as a tarball

{
  imports = [
    (fetchTarball "https://github.com/nix-community/nixos-vscode-server/tarball/master")
  ];

  services.vscode-server.enable = true;
}

Install as a flake

{
  inputs.vscode-server.url = "github:nix-community/nixos-vscode-server";

  outputs = { self, nixpkgs, vscode-server }: {
    nixosConfigurations.yourhostname = nixpkgs.lib.nixosSystem {
      modules = [
        vscode-server.nixosModules.default
        ({ config, pkgs, ... }: {
          services.vscode-server.enable = true;
        })
      ];
    };
  };
}

I don't know how to add this package to my system permanently. And these installation scripts seem a bit imperative rather than declarative.

This may seem unnecessary but i think anything that reduces friction to setting up a feature is a good thing.