What is the "*debug* buffer" in Kakoune?

Question

I'm just starting with the Kakoune editor and somehow I was shown the message error during startup, see *debug* buffer for details when I loaded a file with kak.

I don't know if I'm too stupid to ask this, but I don't know how do I "see debug buffer". The :debug option seems to be there to write something to the debug buffer, not read it.

Answer 1

It turns out that there's a buffer called "debug", to visit it you must

:buffer *debug*

Thanks to @danr on #kakoune @ freenode IRC.