> This meant you could roll features out to: That's how feature flag services work. The whole point is that this is not a querying problem. That's a group ass

> This meant you could roll features out to: That's how feature flag services work. The whole point is that this is not a querying problem. That's a group assignment problem. Users/sessions are assigned to a feature group according to business rules. These can be as complex as anyone wants them to be. Once a user/session is assigned to a feature group, the problem of getting features is a key-value query.