Flutter Whiteboard App Development

I'm looking for a skilled Flutter developer to create a full-featured whiteboard application. Before hiring, I need to see a demo of your work along with the code.

Key Features:
- Drawing tools
- Text insertion
- Real-time collaboration

Requirements:
- Proficient in Flutter and Dart
- Experience in building collaborative applications
- Ability to provide clean, maintainable code

Noted :- Please share your demo work and code i attach one video first show me this demo task, and after we will start work