Ask HN: How much recurring income do you generate and from what?

This thread needs a refresh and updates on existing projects. Have business models and offerings evolved since the thread was first started a few years ago? Previous threads: https://news.ycombinator.com/item?id=8629919 https://news.ycombinator.com/item?id=4467603 https://news.ycombinator.com/item?id=2567487