Basic Social App User Profiles

I’m kicking off a brand-new social networking mobile app and want to start with one rock-solid cornerstone: user profiles. Your task is to design and code this core module so we have a clean, extensible foundation for all future features.

Here’s what I need from you:
• A fully functional profile screen where users can view and edit their photo, bio, and basic details.
• Secure account creation and authentication (email, Google, or Apple—whichever you’re most comfortable implementing first).
• Simple back-end or cloud setup to store and fetch profile data reliably.
• Clear documentation and commented code so any developer joining later can pick up where you leave off.
• A short walk-through video or call at hand-off showing how everything ties together.

I’m flexible on framework—React Native, Flutter, Swift/Kotlin native—just use the one that will get us a clean, scalable result quickly. If you’ve already built something similar, even better; show me a link or screenshots and we can hit the ground running.