BlindArch-2020.12.01-x86_64 how to launch your special installer

Dear specialists,
I have recently downloaded BlindArch-2020.12.01-x86_64.iso image. I can perfectly use Espeakup and Brltty and Espeak. But which command do I have to type to launch your special installer for visually impaired? I do not know The script name. Please tell Me this secret.