How is it possible to use static generation for building a blog?

[mahdidavoodi7]

Hey guys,
I have a blog and I want it to be dynamic but as the docs say :

You can use Static Generation for many types of pages, including:

Marketing pages
Blog posts
E-commerce product listings
Help and documentation

Should I build the app, again and again, every time I want to add a post to it?
So how it is gonna be good for blog posts when I should build every time after adding a post???