Flag state reaches every SDK within 200 ms, so you can cut traffic before you even start debugging.
Audience rules built from user ID, email domain, region and app version, with percentage ramps.
Metric binding, significance testing and automatic stop conditions. Results you can read off the page.

Multi-language SDKs. It is why instant kill switch is a first-class concern and not a README footnote.

Percentage rollouts. It is why targeted rollouts is a first-class concern and not a README footnote.

Current release. It is why a/b experiments is a first-class concern and not a README footnote.

Planned. It is why sdks everywhere is a first-class concern and not a README footnote.
A successful deploy does not mean a usable feature. With QOVIX a release is a flag change: internal accounts first, then a small percentage, then all traffic. When something breaks you flip the flag instead of rolling back a build.