One of our owners, Jerry Angelo (#??), shared a simple and effective solution on the Vistabule Owners Facebook group—we’ve tested it and agree that it works well!
Mount a 40lb pull angle mount magnetic catch to the top of the cooler pull out deck. This is a heavy-duty, L-bracket latch designed to secure large cabinet doors, RV compartments, and marine lids. You can get the latch from wood working stores Rockler, or Woodcraft.
Here is a quick video showing how to install it: https://www.youtube.com/shorts/_ZDcVRBO6UE