HN buzz: A Telegram bot to get new HN stories by keywords

Try it:
https://t.me/hnbuzz_bot
This bot can notify you about new
Hacker News stories by tags.
Send it a message with keywords, for example "ai, tesla, musk" to start. Edit the message or send a new one to update the tags.
Use space to match
all words: "ai escaped, president heart attack".
Special tags [show] and [ask] notify about all 'Show HN' and 'Ask HN' posts.
$ matches all numbers like '$25B': "ai $".
You can also use host names: "[show] github.io".
To view current tags use /tags.
To stop notifications use /stop.