Potentially useful answers from HN'ers to recent similar questions:
https://news.ycombinator.com/item?id=10564055
https://news.ycombinator.com/item?id=10360480
https://news.ycombinator.com/item?id=10221196
https://news.ycombinator.com/item?id=9434963
https://news.ycombinator.com/item?id=8866176