Another question about targeting the feature flag. I can see there is a type of feature flag about targeting and can config dynamic filter rules. but if it’s possible to choose the target user with dynamic rules on client side? like we want to use a very complex rule to decide who should enable the feature which can’t config easily in the growthbook side.

yes, it is possible - we actually let you set very complex rules through the UI

I mean what if our rule can’t be set through UI?

the feature list is just a JSON object, so you can add to it after you fetch it