Goldie is designed to live on your counter as a home for your starter, but the auto-warming feature can be turned on or off to fit your baking routine and personal preferences.
For example, if you are an avid baker who bakes daily, it probably makes sense to keep the auto-warming on 24/7, and feed your starter once a day or more.
If you bake a few times a week, then you can keep your starter inside Goldie, and turn off auto-warming between bake days to save the number of feeds (and flour).
If you are a weekend baker or bake less than once a week, you might like to keep your starter in the fridge between your bakes. Goldie helps your starter get back into action by allowing you to fit more feeds within a short amount of time (ex: three peak-to-peak feeding the day before your bake day).
If you are establishing a new starter from scratch, keeping the auto-warming on all day will help the correct microbes get established and active more quickly.