500 Error when launching nbclassic ('terminals_available')

Setting the environment variables
JUPYTER_PATH=/opt/homebrew/share/jupyter JUPYTER_CONFIG_PATH=/opt/homebrew/etc/jupyter
seems to be at least a partial fix (there are errors in the terminal, but it runs). Since this also has a positive effect on this notebook issue it seems that they are likely related. Some sort of mis-communication about paths between the homebrew build and jupyter?

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