And Dropbox is a wrapper around rsync.

Generally speaking a lot of "essential tools" in "cloud computing" are available as free, boring operating system utilities.

It’s a joke from a famous moment in HN history:

https://news.ycombinator.com/item?id=9224

That is pretty funny, and the whole idea that you can't make money packaging open-source software in a way that's more appealing to people is definitely funny given that this is the business model of a lot of successful companies

I do however think this leads to a lot of problems when those companies try to protect their business models, as we are seeing a lot of today