Show HN: I built macOS app for batch renaming files using regex and JavaScript

I have found most of the apps I tried so complicated, and have a learning curve. At the end I realized I just need regular expressions and JavaScript to do almost anything with the filename.

Add to that, that it extracts EXIF from images/photos, and additional metadata from videos and audio - I feel like this tool should be sufficient enough for most users (actually developers, or people who can ask LLM how to write regular expressions and JavaScript for them).