Feature flag strategy and how-to guide

Feature flags for modular features now have proper documentation on this site:

• The feature flag strategy page sets out what is available today — the production feature-flags service, Flipt-backed with flags as YAML in git — alongside the flags-vs-configuration boundary, per-cell architecture diagrams, and guidance for self-managed environments. The headline rule: design for absence, and fail closed to existing behaviour when the flag service is unreachable.
• The new how-to guide, Use feature flags in your service, walks the full lifecycle: define the flag in your namespace, configure the client, evaluate with the LabKit v2 featureflag package, toggle with a one-line merge request, and delete the flag once the rollout is done.

The feature-flags service is currently in limited availability — reach out via the feature-flags repository if your team wants access.