What I’m looking for is something like https://tuple.app/, but open source.

Thanks for your suggestions! All look like viable solutions, but I’m looking for open-source alternatives to those :)

The use case would be pair programming. Only one of the users would control the desktop at a given time, and the second would be mostly watching and pointing out things. After a while, the roles of programmer and observer could switch and the second user could take control.

This is something I struggle with constantly. I feel like everybody around me does not care about their privacy. All of them say the typical “Why go through all the effort, sacrificing a lot of functionality and convenience for the sake of privacy? I have nothing to hide!”. It drives me crazy, and I feel kind of powerless without a convincing argument that makes them at least understand that installing stuff like Instagram on your phone is basically willingly installing a virus. They don’t even get surprised anymore when the ads they see are about stuff they were talking about with someone else in real life, and never mentioned or searched in their phones. I’m afraid that this will only get worse with time, and new generations that are being born under these circumstances are going to see it as normal. This means that making them understand the implications of not taking their privacy seriously is going to be harder and harder. I won’t give up, though. I’m still searching for my “irrefutable argument”.