This app uses the following stack:

1. Python (Flask)
2. PostgreSql
3. Html, CSS, Javascript

Not required but recommended:

1. pgadmin4 or dbeaver or anyother postgresql GUI tool

And the following dependencies:

1. flask
2. sqlalchemy
3. flask-login
4. Flask-session

For Ubuntu:

sudo pip install Flask

sudo pip install SQLAlchemy

sudo pip install flask-login

sudo apt install postgresql-9.5

pip install Flask-Session