I’ve been a weekly subscriber for several years now to https://hackernewsletter.com/ run by Kale. He recently added a daily newsletter, if that’s your thing.

Both of mentioned links send top stories of HN. I'm specifically looking for thr top "Ask HN" threads of week.

Oh I see.

HN already serves a daily list here https://news.ycombinator.com/ask but someone needs to aggregate it into a master list that can be sent out weekly.

Here you go! https://www.hackernewsdaily.com/ :)

There's an RSS feed. There must be some services out there for automatically checking an RSS feed and sending emails, right?