Power & Source of Big Ideas

Ok, I finally got my board to run ubuntu. Is it possible to install image to SD card using 'dd'?
I'm a new-be and would like to just find the images I can download for a particular board, but all I get is:

"The following words in your search query were ignored because they are too common words: "

IMHO, you should lighten up on the restrictions.

Can't seem to find the link on the portal.
I would like to try out M4 and have my cart all ready to go. I've been looking through the forum and couldn't find anything.

Is there an adapter I need to run nvme ( M.2 2280 ) on the NanoPi M4?