{ description = "Rust development shell"; inputs = { nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable"; rust-overlay.url = "github:oxalica/rust-overlay"; }; outputs = { self, nixpkgs, rust-overlay, }: let systems = [ "x86_64-linux" ]; forAllSystems = nixpkgs.lib.genAttrs systems; in { devShells = forAllSystems ( system: let pkgs = import nixpkgs { inherit system; overlays = [ (import rust-overlay) ]; }; rustToolchain = pkgs.rust-bin.stable.latest.default.override { extensions = [ "clippy" ]; }; in { default = pkgs.mkShell { packages = with pkgs; [ rustToolchain pkg-config ]; }; } ); }; }