I looked for RSS but I didn't find it. Doesn't it provide any feed?
[0] https://github.com/damoeb/rss-proxy
[1] https://rssproxy.migor.org/api/feed?url=https%3A%2F%2Fhystor...
https://hystoria.100millionbooks.org/feeds/all.xml
There are a couple more endpoints (one for communities and another for users) but I'm not sure they're relevant since I've closed off the community feature on this instance.
More details: