I like the pattern where it gives ownership, and the return value returns that ownership. I hadn't really considered that as a valid pattern yet, coming from other languages!
To be slightly pedantic, the comment in the code example labels a clone as a "copy" which is not really correct.
Strings can’t even be copied since they are heap allocated.
I appreciate the sentiment for this, but I personally find the art and composition off-putting.
The writing is a bit confusing. What's with the file transfer jargon?
Was this part of a bigger presentation or blog post maybe?