Developer Builds Privacy-First Toolbox After Catching Online Formatter Stealing Data

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A developer discovered that a popular online JSON formatter was sending pasted content, including auth tokens, to a third-party analytics endpoint via a POST request. The incident prompted them to build DevToolBox, a free suite of seven client-side developer utilities that make zero network calls. The toolbox includes a JSON formatter, regex tester, Base64 encoder, JWT decoder, hash generator, URL encoder, and color converter, all built with Next.js 14 and TypeScript. Every tool runs entirely in the browser using native Web APIs, meaning sensitive data such as API tokens or credentials never leaves the user's device. The project is hosted on Vercel's free tier and is also installable as a progressive web app for offline use.

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Mem0 vs TurboMem: Comparing Memory Layers for TypeScript AI Agents

Developers building AI agents in TypeScript now have two main memory layer options: the well-established Mem0 and the newer TurboMem. Mem0 operates as a separate service requiring infrastructure such as Postgres with pgvector and optionally Neo4j, meaning every memory operation crosses a process boundary. TurboMem takes an opposite approach by running entirely inside the Node, Bun, or browser process as a native TypeScript library, eliminating network hops and external database setup. While Mem0 is framework-agnostic and Python-first with a TypeScript SDK available, TurboMem is built ground-up for TypeScript with Zod-validated inputs and support for edge runtimes like Cloudflare Workers. The choice largely depends on stack preference: Mem0 suits teams needing a standalone memory service, while TurboMem targets TypeScript-focused teams wanting memory to work like a standard imported library.

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ProgrammingDEV Community ·

Full-Stack Dev VikingRob Seeks Collaboration Amid Tough Freelance Market

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ProgrammingDEV Community ·

Linaria Maintainer Builds dx-styles to Fix Zero-Runtime CSS-in-JS Gaps

The maintainer of Linaria and creator of wyw-in-js has launched a new styling library called dx-styles after six years working on compile-time CSS-in-JS tooling. Two recurring problems with Linaria drove the decision: component interpolations in styled templates frequently break static evaluation, and the library lacks first-class support for variants, tokens, and multipart components central to design systems. Fixing both issues would require breaking changes incompatible with Linaria's existing user base, so Linaria will remain maintained while dx-styles starts fresh. The author also noted that slow build times — sometimes consuming tens of minutes and gigabytes of RAM — pushed the new tool toward maximizing static evaluation at compile time. dx-styles is designed for teams building design systems who want typed styles and structured theming without runtime overhead.

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ProgrammingHacker News ·

YC-Backed Moss Is Hiring a Software Engineer for SDK Role

Moss, a startup backed by Y Combinator's F25 batch, is currently hiring for a Software Engineer position focused on SDK development. The job listing was posted on Y Combinator's company jobs board. The opening targets engineers with relevant skills to contribute to Moss's software development efforts. No further details about the role's location, compensation, or specific requirements were publicly disclosed in the listing.

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