I have a Raspberry Pi 3 model B with a SanDisk ultra 32 gb SD card. I used etcher to flash the SD card with the DexterOS-1.0.3-Final.img file that I downloaded here, from your link. Now when I boot the pi, I am prompted with:
Raspbian GNU/Linux 8 GoPiGo tty1 GoPiGo login: Password:
I have tried every combination of usernames and password that I could find on your site to no avail. Please help.