Yes, you can do the type of edits as I suggested and check each day to see if the factory machine built the extension successfully and it load properly. This is a iterative process.
If you don’t have the time to make changes, wait for the next day, etc and need the extension to be available and working properly, then building the extension from source using a Slicer build tree (Slicer built from source) you can make sure the extension is building, installing and loading appropriately. This will let you know for sure that everything is working.