> Thanks!

Thanks for the feedback!

> Is there a reason you apply `call-process' instead of `process-file'?
> With the latter, you could scan also directories on remote machines.

Nope, will do, just forgot about it (bad habit).

> One suggestion: you know for sure key bindings. Other people won't.
> Maybe you could add a menue for your *disk-usage<...>* buffers?

Isn't `describe-mode' enough?

> Furthermore, could you pls adapt Emacs coding rules? Respecting 80
> columns per line max, providing a docstring for all functions comes to
> mind. This would help to read your code.

Will do.

Cheers!

-- 
Pierre Neidhardt
https://ambrevar.xyz/