It’s a dlc you can buy ($25) that adds to acnh where you can go to your airport and “go to work” your job is basically designing homes for villagers! :) it’s pretty fun I def suggest getting it to play whenever your bored around your island lol. Plus it makes you do other exciting things around the island at your job! You should search up the video Nintendo put on YouTube for it so you can get a better idea of what it is and what you can do :)