How would you describe your feature set or competitive advantage against Unleash? https://www.getunleash.io/

Agreed that LaunchDarkly is incredibly over priced.

Growthbook (as mentioned in a sibling comment) is also open source (MIT License). Repo: https://github.com/growthbook/growthbook

Would be interested in knowing the feature differences between the three as they are all Node / Typescript projects