URL of the lesson that's confusing:
https://proto.school/basics/01
What's confusing about this lesson?
I'd like to propose a replacement
Create a node and return... with Create a DAG node and return...
You can create a new node by... with You can create a new DAG node by...
because the word node is used mostly for IPFS nodes in other tutorials but in this tutorial it means a DAG node.