I just finished my side project library I built to handle errors in Google Apps Script . After about 2 1/2 months of working on it nights and weekends when I was available. It feels good to just have had completed something. I first got the idea to build it when it was hard for me to onboard onto the new company I'm working for. I wanted more transparent errors that pointed me to the direction of where the error happened, and how did the application get there. I'm hoping to sell licenses to dev agencies in this small niche of Google Apps Script Dev agencies.