Prevent changes from being saved to sqlite database in a hosted demo project?

I have a demo app designed in php/laravel with a sqlite database & dummy data that I want to add to my portfolio, for users to test. I want users to be able to interact with the app and make changes, however i do not want them to be committed to the database file.

Anyone know what the best way to achieve this would be? I have seen a few projects on themeforest/codecanyon implement something similar to this.