The flags are often not static, though. Varies between environments, markets, user cohorts and whatever rules you can come up with.
replySo plenty of parameters that could be exposed in Redis as well. No?
replyWhat else do you need for feature flags?
replyFor one app and one team, honestly not much. It starts to matter when you want gradual rollouts where the same user stays in or out across services, different rules per environment or customer, an audit log of who flipped what when something breaks, and a way to find dead flags. And then the boring parts: not doing a network call on every check, and what happens when the store is down.
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