Actually, I started out by just using the simplest saving method possible, which is downloading a new version of the HTML file on every save. It seems clunky but isn't that difficult to do.
I branched out to using the Tiddloid Lite [0] Android client, (Tiddloid and Tiddloid Lite are both free and open source, the Lite version just has a different feature set,) and I just uploaded my previous wiki into Google Drive and the app just worked... saving became completely automatic and it syncs to Drive without a hitch.
I'm looking into standing up a TiddlyServer [1] soon for my upcoming project, and I'm planning on eventually doing some modifications to do data storage in a database instead of on disk.
One thing's for sure: it's got a great gradual way to "get into" using it... it just isn't great at communicating those options in a way that isn't overwhelming.
[0]: https://github.com/donmor/TiddloidLite
[1]: https://github.com/Arlen22/TiddlyServer