All groovy smartapps which run in the SmartThings cloud will stop working in December, so most people aren’t spending any time on them these days.
Instead, people are learning how to use the new options: the routines built into the SmartThings app, the new Rules API (although that one has a steep learning curve), or using the third party app, SharpTools. SharpTools has a very nice visual interface, runs in any browser, and is more powerful than the basic rules engine built into the SmartThings app. It has a basic free tier and a more powerful pro option for $30/year.
Why don’t you take a look at the following thread, which discusses all of these options and more. Learning any one of those would probably be a better use of your time than working on something that’s going to be shut off in two months. 