this way of using webdav with nginix is my current favorite for single file wikis
there is also using tw-reciever which uses php, which I used a lot in the past. I’m pretty sure there are more recent, updated forks. This is also for single wiki files.
The Node server version has options to set a username and password.
The beauty of tiddlywiki of course is the plethora of options. These are my current favorites but a search like Tones suggested my reveal a new favorite for you!