Heroku: How to integrate static site generation with Python / Flask

I'm running a Flask website https://www.example.org that is hosted on Heroku, with an attached static blog, https://www.example.org/blog which I generate through Hugo and I'm looking to make this process more efficient

Based on my research, having the blog in a subdirectory is preferable for SEO reasons.

My current workflow with maintaining the blog is as follows:

1. Write Markdown post in Hugo
2. Check to reconcile css etc between Hugo and Flask app
3. Generate the static html code
4. Fix link errors etc.
5. Move static output from hugo/public folder to flask_app/static/blog folder
6. I'm using whitenoise to access the static folder
7. Deploy to Heroku --> https://www.example.org/blog served via Flask

I realize that serving static content via Flask is less computationally efficient (which is acceptable) but this is not a major problem right now.

But I'm sure there must be a better way ?!

from Heroku: How to integrate static site generation with Python / Flask