Enforcing Modularity in Rails Apps with Packwerk - Shopify

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Introduced Packwerk, an open-source static analysis tool for Rails applications. Packwerk enforces modularity by defining 'packages' and enforcing dependency and privacy boundaries between them. It addresses the challenges of large monolithic codebases by promoting high cohesion and low coupling, and by providing a mechanism to prevent cross-component associations and unauthorized access to private constants. The tool aims to improve developer productivity and code maintainability.