I would also second Hugo which I use for my personal site and blog which I haven’t updated for a long time. Nice thing is that it has a minimal footprint of needing to watch out for updates unlike something like Wordpress which was known for being vulnerable stable if left unmaintained. It’s mostly looking out for old themes with vulnerable javascript.
Another popular options is Jekyll and I honestly can’t remember why I picked Hugo over it but if you don’t need dynamic content, why make things more complex?
I use Gitea myself and when the big dust up about the backing company came up, I didn’t feel like there was a big enough reason to migrate away from Gitea. Just because they could do something wasn’t enough of a reason for me. Sure it’s great that they are running a fork that I could switch to but I currently don’t see a reason to switch as of today.