Ruqqyou is a browser extension for Ruqqus that personalizes your experience. It can:

• Filter posts and comments with a custom list of words.
• Forcibly enable dark mode at all times, even when logged out.
• Block posts from certain guilds everywhere, as opposed to only on /all.
• Silently block users without preventing them from seeing you.

To install ruqqyou, download it from here, extract the files and load the extension unpacked in your browser. It has not been published on any stores yet, however that will be looked into in the future.