Hmm I think in general I would not recommend doing this just because Lua does change pretty significant things from 5.1-5.5 so you could have some really hard to understand behavior if some portions are 5.1 vs 5.4 for example.

I think where it would be most helpful is converting a codebase and being able to easily run tests to ensure behavior is the same.

I created a github gist https://gist.github.com/ianm199/5ba0366376eca673142e1f0c79b4... that explains what is practical (I used AI for this to be clear feel free to skim).

Do you have a use case in mind? Would love to chat or take a look at an github issue if you create one.