Hi there. I'm the cofounder of Flagsmith and have been helping work on this spec. The main goal of openfeature is to provide a standard set of interfaces to the variety of feature flagging platforms that exist, to help prevent lock in and make it easier generally to work with feature flags.

The design is pluggable, such that vendors can provide a backend implementation to drive these new interfaces. As a result the project is just as relevant outside of the k8s ecosystem as it is inside.