Slideshow embed?

I haven't done this myself but I'm generally aware of a number of open-source image carousels. The gold standard is of course Photoswipe but it's reasonably complicated. It's worth mentioning that any library will work with Blot in theory – you'll just need to install it on your custom template.

Thanks for the recommendation; I'll have a look at PhotoSwipe, and if I can't figure that out, I'll research some alternatives.