Spent the evening rewriting my bodgy test code into something more useable, and in such a way I can format the toots. Up until now it could only dump the whole toot as a plaintext string.
I’ve got it logging all the separate bits to the console, so tomorrow’s job is to send them to the printer with formatting.
Then see if the library can “just deal with” images from a URL or if I’m going to have to download and convert first.