Ask HN: Is there a site for Hacker News filtered by my topics?

Often, topics that interest me either don't get any attention at all or get too little attention (on the main page). So I would like to curate the newest feed and filter it by my keywords like e.g. "open source" OR linux to avoid getting overwhelmed. The filter should work against the HN and original title.

Is there a website with something like this already or would a modified RSS reader work too?

Preferable with some kind of notification inbuilt so I can join discussion.