> Show HN is for something you've made that other people can play with. HN users can try it out, give you feedback, and ask questions in the thread.
( https://news.ycombinator.com/showhn.html )
This isn't a Show HN, it's "just" a blog post.
Also, please don't put things like "Part 2 in the series is up" in the title when submitting an article. HN readers are not fond of marketing noise, and the site guidelines ask you to use the original title, except when it is misleading or linkbait.
https://news.ycombinator.com/newsguidelines.html
Also, it's generally not good for HN to split blog posts into series, let alone 4 part series. The later parts rarely get as much attention as the earlier ones, and we penalize follow-up submissions because they are repetitive: https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que....
We will refrain from sharing the next parts in the series, and come back to share the full series when completed.