Hey Trccch, Thanks for sharing Developer Noon on Hacker News. I hope everyone here can find this Introduction to NoSQL developers informative and useful.
This book looks really promising. Just a small recommendation, you should give an option to the reader to download the book, if they give there email address. This would increase your newsletter size and hence, it can go long way.
I find the music & songs, which are perfectly aligned to the dance or steps of the tiktoker, is the main reason for the addictiveness. Instagram Reels & YouTube Shorts are trying to do something similar but they are well behind tiktok's algorithm.
Now-a-days, the new filters & remakes is also very addictive.