Fine for me too

Writing your own is hard. They won’t have a problem illegally using Signal

I take it you missed my bracketed comment acknowledging it was probably sarcastic.

Or you can get your mechanic to do it. It’s not like brakes get air bubbles during normal operation, it’s only a risk when working on the brakes in any other way

(Was your comment a poke at the previous one, pointing out that one doesn’t really need those skills? If so I think it’s reasonable for a person with a carburettor vehicle to learn how to tune it, as the skills are becoming rare)