{
  description = "Project-agnostic NixOS EC2 AMI with ZFS /nix support";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
  };

  outputs = { self, nixpkgs, ... }:
    let
      supportedSystems = [ "aarch64-linux" "x86_64-linux" ];
      forAllSystems = f:
        nixpkgs.lib.genAttrs supportedSystems (system: f system);
      mkConfig = system:
        nixpkgs.lib.nixosSystem {
          inherit system;
          modules = [
            ./nixos/baseline.nix
          ];
        };
    in
    {
      nixosConfigurations = {
        baseline-aarch64-linux = mkConfig "aarch64-linux";
        baseline-x86_64-linux = mkConfig "x86_64-linux";
      };

      packages = forAllSystems (system:
        let
          config = self.nixosConfigurations."baseline-${system}".config;
        in
        {
          rootImage = config.system.build.images.amazon;
          systemClosure = config.system.build.toplevel;
        });
    };
}