Modify / write code in typescript for a github project

github
language - typescript  
P.S I would even be fine with python if the result looks better

This project is not mine. I need to understand how it works. It converts an obj model from the blender program into a more primitive one using the voxelization function (voxelization - turning an object into a cube/rectangle).  What I need:
1) to run the program through the console (optional because otherwise there is a preview error due to the data volume)
2) to get intermediate results in files that I can work with.
3) to add the ability to work with large files up to 50 gigabytes. 
4) improvements in voxelization. I am ready to sacrifice time for the sake of the result.

If there are any questions or suggestions, please message me privately. 
Thank you for your attention.