In the blog post "How to structure secrets across microservices," Dillon Watts explores the complexities of managing secrets in rapidly expanding microservices architectures and offers strategies to maintain order and efficiency. As microservices grow, the management of configuration secrets like database passwords and API keys can become chaotic, leading to security risks and decreased developer productivity. To address these challenges, the post suggests adopting core architectural principles, such as maintaining a single source of truth, assigning clear ownership, and implementing consistent hierarchies. It also emphasizes the importance of referencing over duplication and supporting inheritance with overrides to streamline secret management. By categorizing secrets into shared and service-specific types and using tools like Doppler, teams can achieve scalable and organized secrets management. The blog underscores that effectively managing secrets is as much about organizational architecture as it is about security tools, advocating for clear principles and consistent patterns to reduce chaos and enhance productivity as microservices architectures grow.