{ inputs = { nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable"; flake-utils.url = "github:numtide/flake-utils"; }; outputs = { nixpkgs, flake-utils, ... }: flake-utils.lib.eachDefaultSystem ( system: let pkgs = import nixpkgs { inherit system; }; in { devShells.default = pkgs.mkShell { buildInputs = with pkgs; [ cargo rustc rustfmt clippy bacon ]; }; } ); }