Currently, we are creating a system application that runs by i.MX 8M Miniin android studio. I think that "Signing Application with the Platform Keys" of the above site is necessary.
The keys are located in: build / target / product / security: platform.pk8 platform.x509.pem
We don't know in which environment the directory is located. Anyone, any suggestions?
You need create this variables If they aren´t. The Android BSP is customizing for i.MX8 if you need more security things you are going need to ask professional services:
Professional Engineering Services | NXP