The components in Unearth don't really stay nicely if the box tips or moves around. These components are likely going to need you to remove the insert from the game.

The deck holders can be printed by themselves or you can also print the "lid" for them as well. It doesn't snap but you can use a rubber band for them. I'll likely make proper deck boxes in the future, but for now I'm using user Spoonunit's "Interlocking Card Tray", as seen here; https://www.thingiverse.com/thing:1407527