AWS tutorial is horribly out of date. uses 20.09 AMI

Observations

The AWS tutorial at https://nix.dev/tutorials/nixos/deploying-nixos-using-terraform.html uses

module "nixos_image" {
    source  = "git::https://github.com/tweag/terraform-nixos.git//aws_image_nixos?ref=5f5a0408b299874d6a29d1271e9bffeee4c9ca71"
    release = "20.09"
}

to boot an image

Problem

This is terribly out of date. We should not have people boot a 5 year old image in our tutorials.

Approaches

Please update the tutorial to follow the official documentation: http://nixos.org/download/#nixos-amazon

Willing to help?

Maybe

Priorities

Add 👍 to issues you find important.

Open the AWS tutorial at nix.dev/tutorials/nixos/deploying-nixos-using-terraform.html and compare its Terraform example with the official NixOS Amazon documentation at nixos.org/download/#nixos-amazon. Update the tutorial so it no longer boots the 20.09 image and follows the current official guidance; it is done when the example is no longer outdated.