Prompts for this?

The primary objective is to retarget PyPy on top of the Python main branch. A minor objective is to document what of PyPy can be ported to CPython (or RustPython).

Keep a markdown log of issues in order to cluster and close when fixed

Clone PyPy and CPython.

Review the PyPy codebase and docs.

Prepare a devcontainer.json for PyPy to more safely contain coding LLMs and simplify development

Review the backlog of PyPy issues.

Review the CPython whatsnew docs for each version of python (since and including 3.11).

What has changed in CPython since 3.11 which affects PyPy?

Study the differences between PyPy code and CPython code to understand how to optimize like PyPy.

Prepare an AGENTS.md for PyPy.

Prepare an agent skill for upgrading PyPy with these and other methods.

Write tests to verify that everything in PyPy works after updating it to be compatible with the Python main branch (or the latest stable release, CPython 3.14)