Thanks so much for the detailed comment, lots of great tips here!
The mv -T --exchange pattern for atomic GC is really elegant, I hadn't thought of using hardlinks that way. And the TCP slow-start trick with split + parallel downloads is wild :)
Just one quick clarification: the blog isn't mine, I just shared the link because I enjoyed the article. The author is Dave (ratfactor.com), and he's on Mastodon at [@ratfactor@mastodon.art](https://mastodon.art/users/ratfactor ) If you have corrections or things you'd like to see added to the article itself, reaching out to him there would be the best way.
But please keep the comments coming here, I'm learning a lot from them!