Author here. As always, I'm happy to take any feedback or answer any questions about this post.
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Do you have recommendations for granular time tracking? I don't know of any tool that seems like it would do what I want. I know there are tools that track your active window, and I'm not crazy about the privacy aspect of those, and I don't think window titles map perfectly to activities. And then I could manually log every hour of my day, but I feel like the time I'd spend bookkeeping aren't worth the insights I'd get from it.