I mostly sat back and watched my Plausible Analytics showing anything between 80 to 130 people online at my blog. I also updated the post twice based on feedback to be better.
Over the course of 10 hours I got ~9000 unique visitors from HN and thanks to that also 122 visitors to the landing page of my book Deployment from Scratch.
Visitors are kind of vanity metric, but since I already had a link to my book on the page, I got 24 new subscribers for the final release, which is already bit more meaningful.
Fun fact: I upgraded to a higher Plausible plan just a day before this (the basic plan is 10k views per month...).