{ inputs = { nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable"; }; outputs = { self, nixpkgs }: let supportedSystems = [ "x86_64-linux" "aarch64-linux" ]; forAllSystems = nixpkgs.lib.genAttrs supportedSystems; in { devShells = forAllSystems (system: { default = nixpkgs.legacyPackages.${system}.mkShellNoCC { packages = with nixpkgs.legacyPackages.${system}; [ ruff poetry python ]; }; }); }; }