And also please note that Mozilla has their algorithm in the open here: https://github.com/mozilla/readability
Unclutter just produces more visually pleasing results by keeping the original style of the website intact.
Here's a side-by-side comparison: https://github.com/lindylearn/unclutter/blob/main/docs/compa...
Looking at that link, wow -- I didn't realise the Firefox reader existed for over 7 years now.
And also please note that Mozilla has their algorithm in the open here: https://github.com/mozilla/readability