It's obviously the meaning of online writing, the blogiverse, and everything (because of the issue number: https://github.com/samwilson/twyne/issues/42 ) — so I've added support for "syndications" to Twyne. Each post can have a list of URLS (with labels) at which the post is duplicated. This is the first stage to making Twitter and Flickr imports work, so that each post can point back to where it came from (although, the import process will switch things around and pretend that the posts originate on my own site, even though that's not stricktly the case). Hopefully this will work.
It seems like it's also going to possible to use Twyne's syndications to post to indieweb.xyz — https://indieweb.xyz/howto/en
There's an indieweb meeup this morning, and I'd thought I'd go to it and maybe talk about the vagaries of syndication links in posts (because that's been confusing me), but actually before that I wanted to finish importing my entire Flickr collection to this site — and that's taking longer than I thought it would. I've built the same Flickr importer about three times now, for Piwigo, MediaWiki, and a generic backup tool, but this fourth time is different enough. I'll get it done soon though, and so maybe I'll go to the next meetup.
Of course, ideally, I'd be able to write about what I'm working on here, and for it to be syndicated into the other feeds etc. — but I've got more work to do here first, and so keep putting off the actual writing.
In fact, the old truth is rearing its head again: that it's probably not a good idea to write one's own blogging software! I'm ignoring that still though, and having fun.