This week's TLDR Newsletter packs a punch with three standout stories from tech and urban planning. xAI’s Grok 3 is stealing the spotlight in the AI arena, topping the charts with its cutting-edge functionality and innovation. In another buzzworthy development, construction has kicked off on a futuristic Saudi megacity that promises to redefine urban living with state-of-the-art infrastructure and smart technology. Meanwhile, the beloved Ruby on Rails is making a surprising leap into the browser, opening up exciting new possibilities for developers by letting them run Rails directly within their web environment.

Key Points:

• xAI’s Grok 3 Tops Charts: The new AI tool is gaining rapid popularity thanks to its advanced features.
• Saudi Megacity Begins Construction: A bold urban development project aiming to blend futuristic design with modern technology.
• Rails in the Browser: Ruby on Rails is now being adapted for browser use, promising enhanced convenience and accessibility for developers.

Joke: Looks like Grok 3 is not just smart—it’s practically the valedictorian of AI! Who knew our chatbots would eventually outscore our smartphones in popularity contests?
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