With a lot of help from the #ChaosFurs I'm trying to resurrect an old 2011 #Macbook Pro using #OpenCore that I had to have in storage for 10 years to be able to open old tax documents if needed.

https://dortania.github.io/OpenCore-Legacy-Patcher/MODELS.html

If I read it right, I can get it to MacOS 15.3.1 "Sequoia".

According to
https://xcodereleases.com/
that would be enough to run the current version of e.g. #XCode