Worked on the dart-lang/sdk repository to enhance plugin distribution flexibility by enabling analyzer plugins to be sourced from alternative pub servers, supporting private and custom packages. Implemented a hosted field in plugin definitions and updated analysis tooling to recognize and integrate these new sources. Expanded test coverage, including updates to generator and analysis options tests, to ensure robust integration and prevent regressions. The work was carried out using Dart, with a focus on plugin development and comprehensive testing. These changes reduced reliance on pub.dev, improved deployment options, and maintained compatibility with existing analyzer workflows and tooling within the repository.