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Feature Flags in Monorepos: Patterns that Scale

Avoid flag sprawl with naming conventions, shared types, and cross-service governance in monorepos.

12 min read
FeatureFuse Team

Monorepos amplify both the benefits and risks of feature flags.

Patterns

  • Central registry
  • Typed flag access
  • Ownership checks

Anti-patterns

  • Ad-hoc names
  • Copy-paste configs
  • No deprecation process

Scaling Across Services

  • Share flag schemas
  • Establish naming conventions
  • Automated checks in CI

Case Study: Multi‑Package Flag Accessor

A platform team published a shared `flags` package exporting typed accessors. Incidents due to flag name typos dropped to zero.

Conclusion

FeatureFuse’s APIs and SDKs make it straightforward to use consistent flags across packages and services in a monorepo.

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