Although I use a programmable keyboard, which I've configured to "push to talk", that is - I hold a key for dictation, releasing the case stops dictation.
You could test it with file creation/removal or something simple, the same will then work for nerd-dictation.
Although I use a programmable keyboard, which I've configured to "push to talk", that is - I hold a key for dictation, releasing the case stops dictation.