I want to create an Android-only 2D cartoon video maker inspired by TweenCraft. The app must let users build their own characters, record dialogue, and watch those characters come to life with automatic lip-sync and a full range of emotions. Core flow • A drag-and-drop character creator where every body part, outfit, and accessory is editable and can be saved as a preset. • Integrated voice recorder (plus audio import) feeding a real-time lip-sync engine, so the mouth shapes match spoken words automatically. • A library of switchable expressions—happy, sad, angry, surprised, etc.—that users can trigger at any point in the timeline while previewing animation. • Scene composer and video export to MP4 at 1080p. Transparent-background export is a bonus. Tech notes I am open to Unity, Godot, Flutter, or a fully native Android stack; whichever lets you keep performance smooth on mid-tier phones. Clean, well-commented source code and step-by-step build instructions are part of the final hand-off. Acceptance criteria 1. Installs on Android 8.0+ without crashes. 2. Character builder workflow completed in under three minutes during testing. 3. Lip-sync keeps at least 80 % phoneme accuracy when paired with recorded audio. 4. Expression changes update instantly during playback. 5. Exported video preserves sync and resolution. Please include links or APKs of any similar work you’ve shipped and outline your proposed approach to the lip-sync algorithm. I’d like a working character-builder prototype for the first milestone and am flexible on the overall timeline after that.