Can you explain how that fixes the issue exactly? And it needs a test.

Thanks for the review! This change normalizes the cwd with realpathSync() in the XO constructor, so a symlinked or case-variant path resolves to the filesystem’s canonical path. That keeps ESLint’s internal cwd aligned with how it reports file paths, which avoids import/no-unresolved false positives on case-insensitive filesystems when the user’s path casing doesn’t match the actual path casing. I’ve also added a test that creates a symlink to the fixture project, instantiates XO with the symlink path, and asserts that linterOptions.cwd is the realpath.