https://haseebmajid.dev/blog/rest-api-openapi-flask-connexion
absolute vs relative imports https://realpython.com/absolute-vs-relative-python-imports/
mongodb docker compose - https://dev.to/sonyarianto/how-to-spin-mongodb-server-with-docker-and-docker-compose-2lef
flask docker - https://runnable.com/docker/python/docker-compose-with-flask-apps