Get HN replies notifications without a centralized server or needing to provide your email: https://gist.github.com/Decagon/1ef31011d05bf71aa5570f2bddda...

Bit hacky, but uses the HN API to get a comment based on their ID (scraping the new comments page for ids), and then extracts the id from the comment and checks if the parent comment is the same as your username (by querying the API again), and if it is, then it sends a notification.