maxim@terra ~/src/openresolv$ herd eval root "(unless (lookup-running 'pipewire2) (error))" >/dev/null 2>&1 maxim@terra ~/src/openresolv$ echo $? 1 maxim@terra ~/src/openresolv$ herd eval root "(unless (lookup-running 'pipewire) (error))" >/dev/null 2>&1 maxim@terra ~/src/openresolv$ echo $? 0