Worked on the apache/pekko repository to resolve Scaladoc linking issues for the ShardRegion actor within the cluster-sharding module. Addressed documentation build warnings by systematically replacing bare ShardRegion links with backticked references across multiple Scala source files, including ClusterSharding.scala, ShardRegion.scala, and ShardCoordinator.scala. This targeted fix eliminated 18 unresolvable-link warnings, ensuring clean documentation builds and improving the accuracy of API references. The work demonstrated proficiency in Scala, API design, and documentation practices, with validation through sbt tooling and scalafmt checks. These improvements enhance maintainability and reduce onboarding friction for developers working with cluster-sharding in distributed systems.