Unique OS & Feature-Rich Smartwatch Development

I'm in the market for a talented developer who can create a truly unique custom smartwatch. Here are my requirements:

Operating System:
- I want to create my own Operating System (OS)

Hardware Requirements:
- GPS
- Heart rate monitor
- Camera
- NFC
- Waterproofing
- Steps Monitor
- Breathe rate monitor
- Calorie monitor
- Custom apps
- Bluetooth compatibility
- Touchscreen functionality
- Motion Sensor
- EDA scanner
- Google Assistant Built-in
- Google Wallet Built-in
- Wi-Fi
- Speakers
- Microphones
- Finger print sensor

Watch Features:
- Alarms
- Google Wallet
- Timers
- Google Assistant
- Custom programmable NFC app, which allows the user to program the NFC chip without coding
- EDA Scanning app
- Exercise app that tracks different exercises.
- Custom apps like Discord, Email Apps, and many more
- Able to make and receive calls
- On screen keyboard
- Able to text
- Able to email
- Receives notifications
- Watch YouTube
- Play flappy bird
- SoftPOS app (EFTPOS terminal but on the watch. You tap a card on the watch and it collects the money and puts it into the bank account specified in the app.
- Chrome App
- Camera App to take photos and videos.
- Connect to the Wi-Fi
- App that allows you to change the clock face.
- Date and Time.
- Sound
- Lock screen with finger print, face recognition, voice recognition, pin, and password.
- Settings app which allows you to customize the watch more.
- Sleep tracking
- ChatGPT Built-in
- Games Built-in (Flappy Bird, 2048 and so on)
- Custom Song App (Add and delete songs, play songs, pause songs, skip songs, ad free, unlimited skips)
- Voice Typing
- Able to connect to multiple devices (Phone, Wireless Earbuds, Laptop)
- Custom App for the watch (Controls the everything for the watch, but the watch can also control it's self in the settings)
- Refereeing Watch (Has the ability to have multiple stopwatches for timing different things like sin-bins, how long the match has been going for, able to also view the time while on the stopwatch app)
- Photo Editor App
- NFC app that allows me to collect the sent information from other NFC devices
- Visual Studio Code Built-in.
- Able to use a physical keyboard and mouse on the watch
- Video calls
- Calculator App
- Great Southern Bank Australia App

Design Aspects:
- A contemporary square display.

The ideal candidate should have experience in custom OS development as well as hardware and software integration. Experience in wearable technology is a must. You should be au fait with creating feature-rich wearable tech and have a strong understanding of user-centred design. Make your bid if you have the knack for creating the extraordinary!