Hi Alan,
This is interesting stuff, you had me at serendipitous😉
I think the IndieWeb is worth raving about, I’ve not really figured out all the technical details, I tend to install, see if it works and forget.
Even more exciting is with the IndieAuth plugin you can log in with your own blog as opposed to relying on twitter or github.
I love to chat about some ideas around aggregated courses and the IndieWeb that are floating around my head inspired by micro.blog.