.gitignore everything by default I think we’ve all been there. You’re working on a project, making commits, and then suddenly realize you’ve been committing .DS_Store files, node_modules, IDE configuration files, or other junk (CLAUDE.md for example) that shouldn’t be in your repository. Or even worse - environment variables. Th... はてなテクノロジー 2026年09月05日 14:58