Hi there,
great to hear, you have found and new (old) home here on Google Groups.
I am PE in the GSites community and we are often faced with topics about solutions with Apps Script / embedding web apps etc.
In the case it is not a common issue I can help with, I followed the developer support pages, where Stack Overflow is recommended for technical questions.
Should I also link this group? Is there something not discussed here or there - some kind of demarcation or side by side?