I make extensive use of TiddlyWiki with the Markdown plugin and twexe for hosting/saving - works great - though it’s worth noting that TiddlyWiki is really meant for lots of bite-size “tiddlers” and not for large single pages full of information, which are considerably more difficult to manage using its interface.
Not sure if it’s the kind of thing you had in mind, but I like TiddlyWiki for certain things like note-taking. (See here for saving/hosting options).
I make extensive use of TiddlyWiki with the Markdown plugin and
twexefor hosting/saving - works great - though it’s worth noting that TiddlyWiki is really meant for lots of bite-size “tiddlers” and not for large single pages full of information, which are considerably more difficult to manage using its interface.