Thanks for raising this question. From the discussion here: https://news.ycombinator.com/item?id=43938309 https://news.ycombinator.com/item?id=43938309, it pro

Thanks for raising this question. From the discussion here: https://news.ycombinator.com/item?id=43938309 https://news.ycombinator.com/item?id=43938309, it probably won't stay PPL for much longer. It just needs to be worked out.