Ruby was one of many languages to spike in popularity due to being a novel way to approach programming, and everyone I know has moved on from it. But I find it very valuable for one-off scripts that are too complex to write in Bash. I actually used Ruby to compile my app's documentation from sources into a JSON file, and it was easy to update the Ruby code every time I added more features or needed to change how the documentation was generated. It let me write it in a mostly functional way without being too confusing, and it was already installed on my system. But for web apps, no way am I choosing Ruby. I've moved on to Node.js from Ruby years ago, and haven't looked back. Modern JavaScript is much more "clean" than Ruby to me.