How about the source code of this engine? I mean how can I trust someone who I do not know and just trust. For example if I use open source app I know that everyone who is expert can browse the code and tell others if there is something wrong. If we can not see the code we do not know if Qwant collects our data- IP etc. or not. It is just about they say they do not do this but how can I know? Regards, Pol.