Mustard

Mustard lets you "add your own mustard" to any page in the form of notes (named by the german saying "seinen Senf dazugeben" meaning to add your opinion to something). You can use markdown to enhance your notes and even publish your notes to your Bluesky followers (hence make sure to NEVER publish sensitive data). Add an opinion, fact check a news site, slap a funny gif on a page. Go wild :)