Configuration is stored localy in the config.json file.
THIS IS NOT SAFE
Password storage, you can store your credentials in the config.json file, however your passwords will be stored as plaintext making them exposed to anyone with access to the system.
By default the script will not save your passwords and you will be required to enter them each time the script starts.
If you choose to save your credentials in the config.json file, you assume all risk and security implications of doing so.
It is advised that you add an additional routine to the script, that encrypt/decrypt the values stored for passwords in the config.json file.
Below is a Base64 example, however, base64 should not be used for encrypting passwords as it is easily reversed.
password = "my_password".encode("utf-8")
encoded = base64.b64encode(password)
print(encoded)
decoded = base64.b64decode(encoded)
print(decoded)
Output
You should instead use a cryptography library such as cryptography. The usage and details of which are beyond the scope of this demo library and are left to the end user to implement for themself.