I want to release a simple mobile app that mimics the core interaction of Instagram Reels or TikTok. The user scrolls through a vertical feed of short videos; every clip shows a heart button and a comment icon. Tapping the heart toggles “like,” while the comment icon opens a lightweight thread so people can leave or read remarks. Sharing and live-streaming can wait—right now the focus is strictly on liking and commenting. Social media sign-in must be built-in so a new user can enter with a single tap (Google, Facebook, or Apple ID—whichever SDKs you prefer). Once authenticated, the app should load the feed, track each user’s likes, and keep counts synced in real time through a back-end of your choice (Firebase, Supabase, or a slim Node/Express API are all fine as long as they support quick scaling). Here’s what I need from you: • A working Android & iOS build. • Clean, well-documented source code. • Basic admin access or scripts so I can upload, replace, or remove videos and moderate comments. • A brief hand-off guide showing how to deploy the back-end, set environment keys for social login, and push future builds. If you have a starter template or past project that already handles vertical video playback with gesture pausing, let me know; anything that speeds up delivery is a plus.