This reads like a marketing stunt for Noma. The cute name, the logo, the clickbait title, the dramatic tone in an article that seems targeted at a non-technical audience... And the actual vulnerability is what, that if you give an LLM private data and let random people interact with it, it may leak the data? Well, duh.
Similar feelings here. Ruby's philosophy of providing a ton of different ways to do the same thing can lead to some pretty sweet-looking code, almost like poetry... but I'd rather have Python's stylistic consistency and better-integrated type hints. Now that Python has Poetry and uv, Ruby's main remaining advantage has evaporated and it's hard for me to justify using the language.
Another thing I don't like about Ruby is how much the community has embraced the Clean Code brand of readability snake oil. It's easy to come by the opinion that any function over 5 lines is a code smell and over 10 lines it's outright bad. I've even heard the view that if-else statements are a code smell and I should always try to replace them with different classes that have the same interface. To be fair, that only happened twice, but that's two more times than I've heard it from users of any other language. I think that the Python community usually strikes a better balance between avoiding excessive function/class length and avoiding excessive indirection.
The Arcan display server is a really cool idea. Even if it doesn't manage to get popular, I think there are ideas here that we could mine to use them in popular programs.