{ description = "Basic flake for devShell"; inputs = { flake-utils.url = "github:numtide/flake-utils"; nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable"; }; outputs = { nixpkgs, flake-utils, ... }: flake-utils.lib.eachDefaultSystem ( system: let pkgs = nixpkgs.legacyPackages.${system}; in { devShells.default = pkgs.mkShell { packages = with pkgs; [ bun ]; }; } ); }