The government, running a service that doesn’t suck? Call me when it happens

It really depends. I actually needed to learn a bit about networking to be able to host multiple things on nginx on the same port. Internally they run on different ports, but they can get routed by the host name

It will unshare the thing in the UI only, which is enough for regular people. Again, once you share it, it’s out there

You realize you can download it forever at any point, right? Your threat model should be “anyone you share things to has saved them forever”

Once you give up trying to unshare things, then encrypted group chats make a lot of sense.

Once you share a file with someone, they already have it. There’s no point in trying to make them unable to view it after the fact.