I got annex.stalldetection implemented yesterday without much drama. It was
a big patch, and it all worked on the first try. But ended up also spending
all of today working on it. After sleeping on it, I realized there were
several things I needed to improve. Including making a real
protocol that git-annex uses to talk to the helper `git-annex
transferrer` processes, to make it fairly future proof.

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This work was sponsored by Jake Vosloo and Mark Reidenbach 
[on Patreon](https://patreon.com/joeyh).