{ pkgs, lib, ... }: with pkgs; let patchDesktop = pkg: appName: from: to: lib.hiPrio ( pkgs.runCommand "$patched-desktop-entry-for-${appName}" { } '' ${coreutils}/bin/mkdir -p $out/share/applications ${gnused}/bin/sed 's#${from}#${to}#g' < ${pkg}/share/applications/${appName}.desktop > $out/share/applications/${appName}.desktop '' ); GPUOffloadApp = pkg: desktopName: patchDesktop pkg desktopName "^Exec=" "Exec=nvidia-offload "; in GPUOffloadApp