{ description = "Rust Flake"; inputs = { nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable"; flake-utils.url = "github:numtide/flake-utils"; }; outputs = { self, flake-utils, nixpkgs }: flake-utils.lib.eachDefaultSystem (system: let pkgs = import nixpkgs { inherit system; }; in { devShells.default = pkgs.mkShell { packages = with pkgs; [ cargo rustc ]; shellHook = '' ''; }; }); }