org-babel docs

https://orgmode.org/manual/Working-with-Source-Code.html

Babel: Introduction

https://orgmode.org/worg/org-contrib/babel/intro.html

org-babel reference card

https://org-babel.readthedocs.io/en/latest/

Consistent Technical Documents Using Emacs and Org Mode

https://www.youtube.com/watch?v=0g9BcZvQbXU&t=457s

C, C++, D Source Code Blocks in Org Mode

https://orgmode.org/worg/org-contrib/babel/languages/ob-doc-C.html

Python Source Code Blocks in Org Mode

https://orgmode.org/worg/org-contrib/babel/languages/ob-doc-python.html

Configure active languages

https://orgmode.org/worg/org-contrib/babel/languages.html#configure