Multiplatform 10m Shooting Target System

I need a full-stack solution that covers both the electronics and the software behind a 10 m air-pistol / air-rifle training target.

Hardware
– Design, program and calibrate an Arduino or ESP32-based PCB that detects each pellet impact, timestamps it and sends the raw x/y coordinates wirelessly.
– Supply the firmware, pinout diagram and any Gerber or KiCad files so I can reproduce the board locally.

Software
The data from the target must appear in real time on an app that runs on iOS, Android and Desktop (Windows & macOS). A single codebase (Flutter, React Native, Qt or a framework of your choice) is fine as long as all four platforms are delivered.

Core features
• Live shot display with 10-ring scoring for both air pistol and air rifle distances
• Match mode (series, finals) and open training mode
• Shooter history with session archive, group size and average score stats
• Easy pairing with the target over Bluetooth or Wi-Fi and automatic reconnection

Deliverables
1. Compiled apps for iOS, Android, Windows and macOS
2. Complete source code and build instructions
3. Firmware and hardware files for the Arduino/ESP32 target
4. A short setup guide so I can assemble, flash and test the system on my range

Once the prototype consistently reports shots and the apps display them without lag, the project is complete.