Worked on the esphome/esphome repository to improve the accuracy of developer documentation related to devcontainer configuration. Focused on correcting a typo in the devcontainer.json file, the update ensured that instructions for enabling USB serial pass-through from host to container matched the actual implementation and resolved confusion highlighted in issue #15791. By aligning the documentation with real-world behavior, this change reduced onboarding friction for new contributors and minimized support overhead. The work primarily involved editing JSON configuration files and refining documentation practices, contributing to a smoother local development experience and maintaining the overall quality of the repository’s setup instructions.