I'm impressed. It's an intriguing paradigm for a navigation interface - and the implementation looks surprisingly fast. I wonder how it might work as a web browser..
This was first featured in Jurassic Park [1], from IRIX's FSV which is open source [2].
I'm wondering if the file permissions could be visualized better.
[1] https://mrlithium.blogspot.com/2017/07/fsv-filesystem-naviga...