How do I unarchive an item that I have just archived on the main screen of the app?

In order to unarchive an item on the main screen of the app on iOS, iPadOS, and watchOS, please open the settings of the app by tapping on the ‘Gear’ icon that is located in the top left corner of the app’s main screen (The one with ‘Doneit’ title), then look for the ‘Archive’ option and select it. On macOS, please open the settings window of the app by using a CMD + , shortcut or by clicking on the ‘Doneit’ menu bar item and then selecting the ‘Settings’ option from the menu. In the settings window, please select the ‘Archive’ option.