To use the Jetson Nano Developer Kit commercially will impact the warranty.
Here is the extract from https://www.nvidia.com/object/manufacturer_warranty.html as your reference:
WHAT DOES THIS LIMITED WARRANTY COVER?
This NVIDIA limited warranty covers your Tegra K1, Jetson TK1, Jetson TX1, Jetson TX2, Jetson AGX Xavier, or Jetson Nano hardware product, along with any accessories received with the hardware product, (“Warranted Product”) under normal use conditions for manufacturing defects or hardware component failures in your Warranted Product that is still within warranty. This warranty is for the original owner only and is therefore non-transferable, non-assignable and is voided when the Warranted Product is transferred to another party.
This warranty gives you specific legal rights. In addition to this warranty, You may also have other rights based on your local laws which may vary from state to state or province to province.
[i]NOTE: THIS AGREEMENT CONTAINS A BINDING INDIVIDUAL ARBITRATION AND CLASS ACTION/JURY TRIAL WAIVER PROVISION THAT AFFECTS YOUR RIGHTS UNDER THIS AGREEMENT. YOU HAVE THE RIGHT TO OPT OUT OF THE BINDING ARBITRATION AND CLASS ACTION WAIVER PROVISIONS AS DESCRIBED HEREIN.
ALL JETSON DEVELOPER KITS ARE FOR INTERNAL DEVELOPMENT USE ONLY AND NOT INTENDED FOR RESALE OR INTEGRATION INTO END PRODUCTS. ANY RESALE AND/OR INTEGRATION OF JETSON DEVELOPER KITS IN AN END PRODUCT COMPLETELY VOIDS THIS LIMITED WARRANTY AND ALL APPLICABLE TERMS BELOW. FOR THE SAKE OF CLARITY, WHEN RESOLD AND / OR INTEGRATED INTO AN END PRODUCT, THE JETSON DEVELOPER KITS ARE PROVIDED BY NVIDIA “AS-IS,” WITH NO WARRANTIES; JETSON MODULES AND TEGRA SOCS ARE WARRANTED FOR USE IN COMMERCIAL END PRODUCTS PER THE TERMS BELOW. [/i]