How to transfer the result of work to Google SpreadSheets with scripts?

Question

Google Sheets

After working on the table, I wrote several scripts. Among other things, there are works by creating files in directories. I refer to the directory by id. Everything works for me ok. I pass it like this - make a complete copy.
There are problems - 1) the new owner cannot enter the code 2) Despite accessing HIS folder by id, he gets the error "No permission to access this document".
Actually, a question. How to organize the transfer correctly.
Another problem is the need to include libraries like "Drive API".
It seems that these scripts are a good thing, but it’s not clear how to work with them in a team normally ((((