Worked on improving repository hygiene for the GIScience/gis-training-resource-center project by updating the .gitignore file to exclude the .idea directory, which contains IDE-specific configuration files. This change, implemented using Git and version control best practices, helped prevent local development settings from being inadvertently tracked or shared in the repository. By reducing unnecessary commit noise and safeguarding developer-specific files, the update streamlined collaboration and onboarding for new contributors. No bug fixes were addressed during this period, with the primary focus on enhancing the development workflow through careful management of tracked files and maintaining a cleaner, more maintainable codebase.