.gitignore Isn't the Only Way to Ignore Files in Git

Git offers three levels for ignoring files: `.gitignore` (checked into version control for team-wide rules), `.git/info/exclude` (repository-specific ignores not shared with others), and `~/.config/git/ignore` (global machine-level ignores for all repositories). The `git check-ignore -v` command can be used to identify which ignore file is preventing a specific file from being tracked.