While setting up a from-source build on our end, I noticed some issues with the documentation and NSToolkit:

In BuildInstructions.txt:
"More details about settings for each configuration can be found inside '%NoesisRoot%/Src/Config'."
That directory doesn't seem to exist.

NSToolkit's --help seems outdated too:
--platform options are incorrect (at least for macos)
--compiler options are also not what was listed as available to me (and seem old)
Perhaps have a look through the others too.