It seems the only way to post with a sec is using --sec <sec key> or using an env var. I was confused because the examples have `nak event --sec 02 -c 'good morning'`. I thought that meant the 2nd (or 3rd) sec key, but apparently that '02' is the priv key itself.
I was trying to find a way to use my nsec key instead of a generated one. I was able to post this using --sec <nsec>, but isn't there a way to add it with key or admin commands?