I have some suggestions as additions that would be good for panel:

1. When you press the admin button, the modal appears. Someone is writing a code to log in. This code is written by the admin in the panel, or it may be 2FA. Its advantage is that an admin account has been stolen or accessed. It is not possible to log in except via a code.
2. Add a log feature for the admin so that any action he takes is captured
3. Add the role feature instead of giving someone full administrator power for the person
4. Support for API applications to function as client APIs
5. Egg Marketplace
6. Easily add multiple languages
7. Backup feature: If someone accidentally deletes files, they can recover them (temporary recycle bin)