What's the easiset way to also run a few basic filters on the site/RSS feed's content to make it truly shine vs simplistic scraping, like

- splitting the full feed by theme of the article into separate feeds and at the same time

- remove a few keywords and also

- get article length and split into a long / short feed

- Or maybe get what you used to have on some news sites - subscribe only to a specific author instead of getting bombarded with hundreds of items in a feed