Very nice visualisation!
My laptop was recently running low on available disk space, and it was a mystery as to why. I have different tools to explore the file system, including running the “find / -ls” command from a terminal, but it was time consuming to dig through these. I wanted a big picture view of space by directories, subdirectories, and so on.
I’ve created a simple open source tool to do this, using flame graphs as the final visualization.
Source: Where has my disk space gone? Flame graphs for file systems