A more thorough explanation:

fieri

Fieri means "to be made" or "to be done". It is a Latin word that is often used in the phrase "in fieri".

• The plans for the new building are still in fieri, meaning they are still being made.
• The project is in fieri, so we cannot present it yet.

These examples show how "in fieri" is used to describe something that is still being made or done. It is not yet complete or ready to be presented.