What are some topics(related to Web3.0) on which you would like a Tutorial?

I’m creating an RFC for writing tutorials that the community wants.

The topic can be related to anything related to Web3. Either you want a small sample implementation of an app using IPFS and Ethereum or are having a problem with any module or just want to understand how things work under the hood. Well, basically anything.

The idea here is to begin a collaborative effort via which we can add more examples and tutorials for newcomers and contributors like us who are having problems, and placing them under one hood so that we don’t reinvent the wheel by discussing and solving the same problems again and again.

understanding the structure of a code and where it goes. what line does it take first.
like a live call stack but then visualized