I've been trying to make a cool static site generator numerous times. Well, yes, it actually is a quite fun thing to tinker with, but I've found myself struggling to decide on what do I want to see in the final app and what I do not; what features might be needed by other users and what features might be an overkill. So I ultimately went with Zola[1] and encourage you to try it too! Aaaand it is written in Rust, too. It's available in Alpine Linux's repos so it's trivial to set up a CI/CD to compile your blog.
[1] https://www.getzola.org/