{ stdenv }: program: stdenv.mkDerivation { inherit program; name = "${program.name}-control"; preferLocalBuild = true; phases = [ "installPhase" ]; dontPatchShebangs = true; installPhase = '' mkdir -p $out/bin cat > $out/bin/run <<EOF #!/bin/sh set -e for n in {1..30}; do $program/bin/run done EOF chmod +x $out/bin/run ''; }