finputs @ { nixpkgs, ... }: let
  systems = [ "x86_64-linux" ];
in builtins.foldl' (a: b: a // b) {} (builtins.map (system: let
    pkgs = import nixpkgs { inherit system; };
    inputs = finputs // { inherit system pkgs inputs; };
  in {
    ${system} = {
      rust-env = import ./rust.nix inputs;
    };
  }) systems)