Video-Upload-Feature in Appointments App

I am seeking a proficient mobile developer who can integrate a new feature into existing appointments app. Essential skills include:

- Mobile app development
- Understanding video recording and uploading features
- Familiarity with camera integrations

The primary functionality I want in my app include

- The ability to upload a pre-recorded video in place of live phone camera footage during appointments.

Your experience with similar projects or functions will be highly valuable for this task.