How to start developing PostgreSQL and add support of io_uring? [closed]

1. I have set up an EC2 instance

2. Downloaded and installed the latest kernel

3. Configured liburing

4. Downloaded and installed PostgreSQL*

I am unable to find which file to update yo include the support!

I have already checked out these guides

-https://kernel.dk/io_uring.pdf

-https://unixism.net/loti/

-liburing source code on github

But I am not getting a clue where should I start!