Oh, interesting. I didn't know that existed! Pretty similar idea. Mine's more focused on content blocking than specifically privacy. This should also work cross platform since its all written in go. (I've used it on windows, mac, and linux) If there's enough interest, I could polish this into a more complete product. I've been meaning to do a rewrite done right based on this prototype but need some motivation/reason to improve something that's "good enough" for me personally blocking ads and cruft while reading the news.