How do i get started? how is content being rendered into a set of html-files?

my posts/ is not rendered to an html-file when I run the server …

do I need a layout?
and if i do, how do i build it up?

The documentation has your answers:

I would appreciate some information aside from the official documentation !

I asked because I haven’t found anything.

Yes, you need a layout, and a theme can get you bootstrapped, from that perspective.

Although, I agree with @bep; the docs are the best place to start. It takes time to go through them, but I think you need to invest that time.

thanks. i found something inside the documentation… thank you !