Over reliance on algorithms has degraded the user experience to the point that the average user is drowning in ragebait and extremist politics, because they drive up engagement. Just like a toddler, algorithms don’t discriminate between good and bad attention, so everything that gets clicks is thrust forward. Now, you could hope to train the algorithm to show you only postive things, but engagement is engagement and the algorithm curators often engage in rage farming, where your feed is injected with things that are likely to enrage you.
You can avoid this by installing an RSS reader, going to your favorite sites, and manually adding a RSS feed. Now, your reader has things that you manually selected, with the added bonus of having a content pipe free of malicious interference. You can also divide topics in a way that you can avoid certain themes and news until you decide to engage them.
Since you seem technical enough to use docker you should look at n8n. I’ve been using it the past few months for odds and ends and I love it so much.
You could totally set up an incoming webhook and then process anything you like in between and format it as an RSS feed going out.
Not OP but thanks for bringing n8n to my attention, wasn’t aware of it. At a glance it seems similar to Node-RED but leaning more heavily towards the IFTTT/Zapier side of things with tighter integrations, definitely an interesting project.