Calling @sphygmus… (This is a much better question for @sphygmus, who seems to have a dope Webmention setup for her TiddlyWiki.) I’ve been keeping my TiddlyWiki on Dropbox. I know this isn’t very Indieweb anointed - but it can be! Just name the wiki index.html and then: Use ‘in the sky’ to edit on mobile or Chromebooks. On a full PC, sync Dropbox locally and use TiddlyWiki directly from there. On the server, you can sync just your TiddlyWiki folder. Or you can make the folder public on Dropbox and - I don’t know - put a CDN in front of it or mirror it somehow. Hopefully someone can pitch in better ideas than mine - just thought this could get the ideas going.