ZX-NEXT

Here an acquaintance is wondering if there are any dockets on the subject?
specifically, any dockets on Hardware, the more detailed, the better :)
-well, and Software under the subject.
An acquaintance who is a Spectrumist, God knows from what year, we’ll help the person!
Maybe someone has access to the developers, or they themselves echo are reading, please respond!!

Bye.
Max.
... The box contains a faulty floppy disk

Following up:
1. How to connect the mouse to the subject? Three schemes have been tried, to no avail
2. You need a BIOS, also for the subject, add it, pls.

Bye.
Max.
... Watermelon is also a berry!