While not being able to use Django's ORM (or admin) is frustrating, you can still use Django's API, like routes, middleware, templates, forms and so on. That's far from useless and Django on GAE is actually as default as it can get.

I actually have an older project made with Django for GAE. Haven't updated it and haven't tested it in a while, but it should still work and one might find it useful for inspiration: https://github.com/alexandru/TheBuzzEngine