See also, for your Zettelkästen needs:

4 months ago: https://news.ycombinator.com/item?id=22085837

7 months ago: https://news.ycombinator.com/item?id=21208196

Definitely a trend, as 2/3 of the posts have been in the last year: https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...