[unwind]

This sounds like an awesome tool, and the "hacker spirit" of it really speaks to me.

It's really fitting to have a supremely technical and focused tool like this be described with things like "pretty C expressions" and (my favorite) "it's like find(1), but more fun to use", because obviously writing low-level C-like expressions to match against files is fun, most of all. Love it.

Also some of the examples are truly powerful, and at least I was not aware of any tool that could do things like this:

    # Find executable files that are larger than 10KiB, and have not been executed in the last 24 hours:
    anyx && sz > 10K && atime < ago(day)

    # Find regular files with multiple hard links
    f && nlink > 1

    # Find symlinks whose ultimate targets are on a different filesystem:
    texists && tdev != dev

Examples all cherry-picked from the manual page, and I picked the most terse version, more readable/explanatory versions using fewer built-ins are also available.

Many of the examples feel liks "I would never need that"-territory, until you do and then it's like impossible unless you write your own specialized tool to do it, or reach for this. Very cool!