I'd had this idea for a joke for a few months but hadn't bothered to go looking for an Umineko screenshot generator, but then a friend pointed me to https://hikukastel.net/generator/generator.html and what was originally going to just be one screenshot of the first verse got a little out of hand.
But it was a good excuse to try out video editing on my new laptop and a fun way to spend an afternoon, and I like how it turned out.