Nice project, but usage of the long s "ſ" makes this somewhat unpleasant to go through. Also it's a medieval character, Euclid didn't know of it, so is it purely to decorate the text? To make it feel more ancient?
This is based on Byrne's famous translation/illustration of Euclid published in the 1840s, which did use the long s (although it was beginning to fall out of favor even then) See this example page from the book
https://www.mccunecollection.org/gems
2023 https://news.ycombinator.com/item?id=37550846
2018 https://news.ycombinator.com/item?id=18697567
And another approach, Fancy Euclid's “Elements” in TeX
2019 https://news.ycombinator.com/item?id=20019616