"It is a local bread."

Translation: Det er et lokalt brød.

[iyad.elbag]

Are there any rules for et vs en, or is it just something we'll have to remember word by word?

[DavidHarri227108]

It's different for every word, but you will catch on to patterns after a while which should make it easier for you.

[RidderJakob]

There are some very detailed post to find in the discussion section (Danish from English), as far as I recall