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Hello,
Your project is really interesting and that's why I'm suggesting some very simple improvements that can help the project to be used by more people. Furthermore, other universities also have Moodle and SIGAA and their students can use your project :)

The first one is to create env variable for these email address:

Also create const variable for these "magic" numbers:

Also create a README file to help other developers and users to use the app. Overall, awesome project and code :)