October 10, 2026

This article describes REA (Reverse Engineer Anything), a tool that allows users to inspect and understand how software works by analyzing its code. It provides examples of using REA to reverse engineer Windows Calculator and a browser-based game to understand specific functionalities and rebuild them.

• REA allows users to ask their coding agent in plain English to inspect software and explain its functionality.
• The tool can decompile code, identify function handlers, and provide insights into how specific features like percentage calculations in a calculator or speed progression in a game are implemented.
• Users can then leverage this understanding to rebuild or modify the software's behavior.

Cloudflare has acquired the Deno team, signaling a significant shift in their focus for building server software. This move aims to simplify the development and operation of distributed applications, integrating Deno's innovative runtime with Cloudflare's existing serverless platform. Here are the key takeaways: * **Deno Team Joins Cloudflare:** The entire Deno team will now be part of Cloudflare, working to advance server software development. * **Focus on a Unified Platform:** Future development efforts will concentrate on a shared programming model, integrating Deno's work with Cloudflare Workers and Durable Objects. The goal is to make this model the standard for building servers. * **Deno Runtime Support Ending:** While Deno will remain open-source, Cloudflare will cease its development of the Deno runtime after one year, offering only bug fixes and security updates. * **Deno Deploy Shutting Down:** The Deno Deploy hosting service will be discontinued in six months, with migration support offered to paying customers moving to Cloudflare Workers. * **JSR Continues:** The JavaScript package registry, JSR, will remain operational with its infrastructure moving to Cloudflare. * **AI and Distributed Applications:** The acquisition is expected to accelerate innovation in areas like AI agents, leveraging Cloudflare's Durable Objects for their capabilities in serverless execution, persistent state, and WebSockets.