{ inputs, ... }: let system = "x86_64-linux"; pkgs = inputs.nixpkgs-unstable.legacyPackages.${system}; in final: prev: { printrun = prev.printrun.overrideAttrs ( finalAttrs: previousAttrs: { propagatedBuildInputs = previousAttrs.propagatedBuildInputs ++ [ pkgs.python312Packages.platformdirs ]; }); }