Four steps. One script tag. Runtime, not a deploy.
Connect analytics
Read-only OAuth to your existing warehouse. No new events emitted, no sprint required.
Install the SDK
One <script> tag, or a server-render proxy for SSR apps. Your codebase stays where it is.
Review variants
2–3 variants per cohort with a reason and predicted metric. Pick from console or Slack.
Ship & measure
Variant goes live to that cohort only. Uplift reports alongside the reason you approved.
How a variant ships without touching your codebase.
rf.js boots
onboarding.step1 → adapted version