I've done this. Built a whole RSS app, where I can use RSS feeds to serve me the web page itself, then customize the web page with my own styling if I want. I can also use non-RSS pages in my RSS reader and show once a day or however often I want.
The problem is with discovery, though (e.g. getting new information you wouldn't get with an RSS feed, such as YouTube videos). I still think you'd need to make your own algorithm based on your own parameters so you can get the benefits of discovery while also controlling what you see.
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