Separate blog per project?

Is it possible to set up a blog for each project? or is it just one blog per user/organisation?

I am trying to add blog content under the ./docs directory in a project in ./docs/_blog, but it looks like the generated pages want to be relative to the organisation  (  ) rather than the project and I don’t have write access to that.

Would I be any better off using a gh-pages branch instead?

I think I found the solution to my problem after further searching - use baseurl