That looks like a nice tool. It would be helpful if it could optionally run off of a data file. I've used "ncdu" to visualize my restic backups by writing a script that generates the ncdu data format, and more recently I've abused ncdu to visualize process memory usage on macos:
https://gist.github.com/dunhamsteve/59f5e6b9a4bc69039853674d...
https://gist.github.com/dunhamsteve/59f5e6b9a4bc69039853674d...
I'm interested in programming language theory, compression, and cryptography. Recently I've been helping out with the Idris2 language and wrote the dependent typed language Newt.
I'm currently looking for new opportunities (local or remote).
https://dunhamsteve.github.io