I have decided to try and debug and update a Smartthings ported app for HE. Since there isn't an app simulator in the HE IDE, I assume the way you need to test is to install the app, run it and use debug statements to troubleshoot.
Once the app is installed and running and you make changes to the code in the IDE and save, does the running app get updated with the revised code? Or do you need to remove the installed app and reinstall the app with revised code?