I am still writing https://nts.strzibny.name

It's my own retrospection / notes / and now also marketing for my books Deployment from Scratch and Kamal Handbook.

I get around 6k/mo visits, it's not really growing but I also never wrote "for SEO", just whatever I am dealing with.

As for promotion I submit the better posts to Ruby subreddit and I am lucky my posts are often picked up by 2 Ruby newsletters.