You can use a firebase client in the language of your choosing [0] and use the realtime data API [1] to pull, download, and iterate.

Found a very basic demo to get up and running on SO [2].

[0] https://github.com/HackerNews/API#overview

[1] https://firebase.google.com/docs/database

[2]https://stackoverflow.com/questions/69518903/how-can-i-acces...