As a homeowner with two properties, I’ve always wanted to synchronize my Home Assistant configurations between my main house and summer home. After some research, I found that YAML preprocessing could be the solution. By using anchors and aliases, I can reference common settings from a central file while keeping credentials separate. This approach not only streamlines updates but also makes it easier to manage location-specific differences, like latitude and longitude adjustments. If anyone has tips on optimizing this setup or encountered similar challenges, I’d love to hear your experiences!