MarsSeed [1] filed a deletion request for ncsdk [2]:

Broken, unmaintained dual Python2/Python3 package from 2018; uses
python(2)-setuptools but does not declare those in (make)depends.

Also this is a legacy SDK toolkit for an Intel computer-on-a-stick
hardware device manufactured between 2017 and 2019. The SDK's
development has also been discontinued since 2019. [a]

Contrary to last AUR user comment made by @Eirikr on 2023-04-01, the
mentioned legacy Intel device is fully supported by Intel's successor
SDK, called OpenVINO™ Toolkit, which is also compatible with newer
"Intel Neural Compute Stick" devices.

It is not useful to keep this defunct package.

[a]: https://github.com/movidius/ncsdk/

[1] https://aur.archlinux.org/account/MarsSeed/
[2] https://aur.archlinux.org/pkgbase/ncsdk/