Making a project open source

Is there any danger in making a project open source? Could somebody hack into my account because they have the app id?

Hello, Caleb

Don’t worry, account can not be hacked by app id.

Regards Anton

Security of your backend is not in hiding your app id and secret key. The app becomes secure when you apply proper permissions for your data tables, users, files, etc. If the permissions are properly set, there is no real danger in exposing your app id.