Using a custom board on macOS Tahoe 26.1 seems to be missing two python packages to a slow into build.

[riedlse]

Was able to build after I installed these two packages

/usr/local/opt/python/libexec/bin/python -m pip install --break-system-packages PyYAML
brew install pykwalify 2>&1 || pip3 install --break-system-packages pykwalify

[riedlse]

So, this works on my arm Mac, my Intel Mac has a large amount of brew packages installed and probably a messed up path. I would think that when you run the nRF terminal it would put the toolkit ahead of those, but may not be happening. so....

/usr/local/opt/python/libexec/bin/python

[Einar Thorsrud]

Hi,

Thank you for confirming. I agree that it would be better (and expected) that the nRF Terminal put the toolchain components first in the path. This has been reported internally but I cannot promise if or when this will be updated.