{ pkgs ? import <nixpkgs> {}
}:

path:
let
  json = pkgs.runCommandLocal "desalinated-${builtins.baseNameOf path}" {
    nativeBuildInputs = with pkgs; [
      pythonPackages.j2cli ruby yaml2json
    ];
  } ''
    j2 ${path} > expanded.yaml
    yaml2json < expanded.yaml > $out
  '';
in
builtins.fromJSON (
  builtins.readFile json
)