{ description = "A very basic flake"; outputs = { self, nixpkgs, flake-utils }: flake-utils.lib.eachDefaultSystem (system: let pkgs = import nixpkgs { inherit system; }; flakePkgs = rec { minitrix = pkgs.python310Packages.callPackage ./. { }; }; in rec { packages = flake-utils.lib.flattenTree flakePkgs; devShell = pkgs.mkShell { inputsFrom = with packages; [ ]; packages = with pkgs.python310Packages; [ poetry yapf ]; }; }); }