If you use a version manager like rtx or asdf then it’s basically that simple. I just had to run a single command: rtx use python@pypy3.10 This downloaded

If you use a version manager like rtx or asdf then it’s basically that simple. I just had to run a single command: rtx use python@pypy3.10 This downloaded and installed PyPy v3.10 in a few seconds and created an .rtx.toml file in the current directory that ensures when I run python in that directory I get that version of PyPy.