You can do a lot of cool stuff with cameras. AR-tracking and computer vision are the main ones that come to mind. I wouldn’t trust the glasses from Meta to keep this data safe though.

Whenever I work on something, I don‘t intend on publishing, I use What the commit.

I found a blog post about this. The bottle in this particular image doesn‘t look like the one in the blog post, but it‘s a similar idea.

It‘s like that one planet in SMG.