I made a telegram bot that can send you new Hacker News stories by keywords.
You specify a list of tags, for example "ai, tesla, musk" and it will start sending you all new stories matching those words.
Tags can be grouped with | or semicolon: "ai, escaped | president, heart, attack".
Special tags [show] and [ask] notify about all 'Show HN' and 'Ask HN' posts.
Another special tag $ matches all numbers like '$25B'.
You can also use host names: "[show], github.io".
To view current tags use /tags.
To stop notifications use /stop.
Direct link: https://t.me/hnbuzz_bot (HN auto-deletes t.me links)