Feature delivery infrastructure

Ship code once.
Control behavior at runtime.

A developer-first feature flag platform for targeted releases, gradual rollouts, environment isolation, and safer operational changes.

No third-party feature service required. PostgreSQL + FastAPI + Next.js.

Deterministic evaluation

Same context, same result. Target users safely without inconsistent rollout behavior.

Keep development, staging, and production state separate with revocable SDK keys.

Preview targeting and percentage rollouts against realistic user contexts before shipping.

One control plane

Model your workspace, keep every environment explicit, and put evaluation logic in one reusable engine.

Define a typed value and a stable key. Keep product logic decoupled from release timing.

Compose attribute conditions and reusable audience segments without hard-coding user lists.

Use deterministic percentages and the simulator to preview real cohorts before production.

Review flag and targeting changes in a project audit timeline.

Built for engineers