Make settings available from system env

[jonaskahn]

This PR just make settings now ability get from system env config.

[github-actions]

CLA Assistant Lite bot All contributors have signed the CLA ✍️ ✅

[jonaskahn]

I have read the CLA Document and I hereby sign the CLA

[yasyf]

pydantic-settings will already do this for you, pretty sure

[jonaskahn]

Oh, I see. Let me check it.

[andersfylling]

Personally I'd prefer less dependencies. Adjusting configuration values is very common to do via the terminal:

SURYA_IMAGE_DPI=128 python script.py

You see this for other projects like Tika, tesseract, etc. So I'd welcome this change rather than forcing it to be done via some python abstraction.

[jonaskahn]

Personally I'd prefer less dependencies. Adjusting configuration values is very common to do via the terminal:

SURYA_IMAGE_DPI=128 python script.py

You see this for other projects like Tika, tesseract, etc. So I'd welcome this change rather than forcing it to be done via some python abstraction.

Totally agreed, but I close it as respect the author's idea.