@stefp I haven’t seen any public/online versions that allow anyone to save edits to your server (node might give you an option to if you wanted, but I haven’t delved into it yet). All the public versions require some sort of account/authentication set up to actually save the TW. On the other hand, it’s generally very easy for people to download your entire Wiki and save a copy, or to drag/drop Tiddlers from yours to theirs. In most cases, if they do make changes and attempt to save it, the browser will simply force a download of the entire wiki to their local computer without any changes to your hosted version.