2021
https://blog.miguelgrinberg.com/post/flask-mega-tutorial-update-flask-2-0-and-more
    https://github.com/miguelgrinberg/microblog
2017
https://blog.miguelgrinberg.com/
https://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-i-hello-world
https://habrahabr.ru/post/346306/
https://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-ii-templates
https://habrahabr.ru/post/346340/
https://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-iii-web-forms
https://habrahabr.ru/post/346342/
https://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-iv-database
https://habrahabr.ru/post/346344/
https://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-v-user-logins
https://habrahabr.ru/post/346346/
https://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-vi-profile-page-and-avatars
https://habrahabr.ru/post/346348/
part 8
    https://habr.com/ru/post/347450/