{ lib, writers, runCommand, }: { feature ? "cuda", name ? feature, libraries ? [ ], }: content: let tester = writers.writePython3Bin "tester-${name}" { inherit libraries; } content; tester' = tester.overrideAttrs (oldAttrs: { passthru.gpuCheck = runCommand "test-${name}" { nativeBuildInputs = [ tester' ]; requiredSystemFeatures = [ feature ]; } '' set -e ${tester.meta.mainProgram or (lib.getName tester')} touch $out ''; }); in tester'