This is the most obvious solution, but often the most resisted. Consider the value proposition:

Regarding the license key, FileBot uses a flexible licensing model. While it's free to use, some features require a license key. The license key is not required for basic usage, but it unlocks additional features, such as:

FileBot is often used in environments with massive libraries of personal media. If you download a "patched" version of the software or a script claiming to generate keys from an unverified GitHub repository, you are effectively inviting a stranger’s code into your system.

A lifetime license (personal use) is around $6–$12 on sale. That’s a coffee or two. It supports continued development and removes all restrictions.