Complete my Family Calendar

Hercules built a family Calendar for me with this prompt - "An app to maintain a calendar for my person and professional activities. I should be able to add and import activities into this calendar. Send me reminders via in-app notifications about important events around medical appointments. I have four people in my family - me Amit, wife Ekta, Sons Akshat (aka Akki) and Arghya (aka Rikki). Check my calendar to summarize annual physical, dental, and eye appointment. The app must integrates with Google Calendar to manage my events" Clarification: Full two-way sync (read + write to Google Calendar) The app should let me add/remove family members. The App should give me option to add my other calendars such as Microsoft or my work. Clarification: Browser push notifications (works even when app is closed). The app must be a good looking and professional. Clarification: Full two-way sync (read + write, same as Google Calendar). The app should send me notification on my email or SMS when an appointment Clarification: Both email and SMS Clarification: Use placeholder/mock notifications for now — I'll connect real providers later" What I need help with: Build additional functionality - ongoing basis