No problem mmaaz, welcome to the Jetson community! The Jetson modules are always deployed with some type of carrier or motherboard that may integrate other devices. You can’t simply solder connections directly to the pins, besides from being impractical the carrier/motherboard implements conditioning circuitry for the I/O signal and power circuitry for the module as well. For example, consult the Jetson Nano Product Design Guide and Jetson Nano Reference Design Schematics to see the recommended circuitry that accompanies each type of I/O (for instance DisplayPort and Ethernet each have their own requirements).
For production deployment, folks typically customize the reference carrier board design with their specific I/O needs, in some cases stripping it down and in others adding I/O for their application. Other times, they may add a slot for the Nano in their motherboard that is highly-integrated into their embedded device or platform. Others may use one of the off-the-shelf carrier boards from an ecosystem partner for deployment or consult with them to do the desired customizations.
Hope that helps explain how it typically works with embedded system-on-modules (SoM) such as Jetson :)