Android Programming with Android Studio
From Variscite Wiki
VAR-SOM-MX6 - Android Nougat - Programming with Android Studio
Debugging With Android Studio
Android Studio And Hello World APK
Create a Hello World APK Refer to: Hello World 'APK' application
Setting up ADB/Fast Boot for the DevKit
Refer to: Adb and Fastboot
Debugging with Android Studio and DevKit
Refer to: https://developer.android.com/studio/debug/
Before you go to step no 2, verify the devkit is present. To verify the device is present run below commands
$ adb devices
You should see below output
$ adb devices
List of devices attached
0a2299d4e6fe1111 device
If you see above output, proceed with step 2 and onwards as per the instruction: https://developer.android.com/studio/debug/
Please don't use emulator instruction mentioned there as the physical device(VAR-SOM-MX6) already present.