{ lib, buildDunePackage, reason, console }: buildDunePackage rec { pname = "console-test"; version = "1"; src = ./.; useDune2 = true; buildInputs = [ reason console ]; doInstallCheck = true; postInstallCheck = '' $out/bin/console-test | grep -q "{\"Hello fellow Nixer!\"}" > /dev/null ''; }