{
  description = "Metanix infra logic flake";

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

  outputs = { self, nixpkgs }:
    let
      system = "x86_64-linux";
      pkgs = import nixpkgs { inherit system; };
      data = import ./meta.nix;
      metanix = import ./lib/metanix.nix { inherit data; lib = pkgs.lib; };
    in
    {
      # You get a devShell so you can :repl in peace
      devShells.${system}.default = pkgs.mkShell {
        buildInputs = [ pkgs.nix pkgs.git ];
      };

      # Simple command to dump the system index to stdout
      apps.${system}.print-index = {
        type = "app";
        program = pkgs.writeShellScript "print-index" ''
          nix eval --impure --expr '
            let
              data = import ./meta.nix;
              lib = import ${nixpkgs}/lib;
              metanix = import ./lib/metanix.nix { inherit data lib; };
            in
              builtins.toJSON metanix.buildSystemIndex
          '
        '';
      };

      # Or expose it as a Nix eval-friendly output
      packages.${system}.default = pkgs.writeText "system-index.json"
        (builtins.toJSON metanix.buildSystemIndex);
    };
}