2/4 Also, somebody posted Betula on HackerNews, and it remained on the front page for the whole day. It doubled the number of stars on GitHub, which is fun, because it's just a mirror; the number is still two-digit, but it's big enough to impress, because most repos barely get more than 10. It also brought two subscribers to my Betula! It's not much, but I believe in slow growth.
3/4 The discussions on HackerNews are not that interesting. Most of commenters compared Betula to other bookmarking solutions and approaches; this is valid, but boring. Also, people wondered what the word Betula means and whether it comes from Hebrew. No, it does not, it means Birch in Latin, my favorite tree.
I thank people who answered the questions for me. I don't have an account there.
Nevertheless, I had fun reading them and being on the front page.