{
  inputs = {
    nixpkgs.url = "nixpkgs/nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";

    rust-overlay = {
      url = "github:oxalica/rust-overlay";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { self, nixpkgs, flake-utils, rust-overlay, ... }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        overlays = [(import rust-overlay)];
        pkgs = import nixpkgs { inherit system overlays; };
      in {
        devShells.default = pkgs.mkShell {
          buildInputs = with pkgs; [
            rust-bin.stable.latest.complete
          ];
        };
      }
    );
}