You can't self host it, otherwise you'd be better off writing your own basic HTML pages or using a static site generator. You can check out the source code on github though https://github.com/HermanMartinus/bearblog
Love to see Django apps out in the wild! It might be worth adding a COPYRIGHT file to the repo, to clarify if we do or do not have the right to run this software on our own.
Can you write a minimal documentation on how to selfhost ?