This could be good, but there's just one problem...
It only works when the green flag has been clicked! Besides that, people who extract the sb3/pmp might be able to delete it as well.
Viewing post in Project Packager Detection comments
hey I used some of the scripts from this project and made one that works before you press the flag https://coolboyke.itch.io/anti-piracy-for-scratch-or-turbowarp-projects