I've been using it for a few years already. I wrote a bit here https://news.ycombinator.com/item?id=45276516 https://news.ycombinator.com/item?id=45276516 and h

I've been using it for a few years already. I wrote a bit here https://news.ycombinator.com/item?id=45276516 https://news.ycombinator.com/item?id=45276516 and here https://news.ycombinator.com/item?id=39461180 https://news.ycombinator.com/item?id=39461180