I've always only made pages while working on the front end... Thank you so much for giving me the experience of implementing a login function in the back end and saving and managing data. ( _ _) I think I'll be able to implement more complex functions if I apply what I've learned well! If I have another small wish, I'd really appreciate it if you could tell me how to log in through Google or GitHub in addition to email login!!! Please continue to make great lectures in the future!! ㅋㅋ