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<h1><strong> TLDR Dev <span id="date">2025-10-23</span></strong></h1>
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<p><strong>1️⃣ AI-driven product decision-making: </strong>See how AI surfaces non-obvious pattern in product data and lets you connect customer feedback to development priorities.</p>
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The "Functional Core, Imperative Shell" pattern advocates for separating code into two distinct parts to improve testability and maintainability. The functional core contains pure business logic without side effects, operating only on provided data. The imperative shell handles side effects like database calls and email sending, orchestrating the functional core.
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<strong>I see a future in jj (10 minute read)</strong>
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This dev is enthusiastic for the version control system, jj. jj has product-market fit, a dedicated team, and a growing user base within companies like Google, so it has potential for widespread adoption.
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<strong>One Year with Next.js App Router — Why We're Moving On (22 minute read)</strong>
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Next.js's App Router and React Server Components don't have the ability to perform optimistic updates and redundant data fetching. As a result, this team migrated their frontend from Next.js to TanStack Start, a move that simplified their code, improved performance, and reduced costs.
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Solito 5, used to bridge the gap between React Native and Next.js, drops the `react-native-web` dependency to embrace pure Next.js components on the web for easier integration and customization. This allows devs to use standard web props like `className` and `style` directly on Solito components. The move towards web-first files aims to simplify configuration for web consumers of React Native libraries.
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Open Notebook is an open-source alternative to Google's Notebook LM. It allows users to control their data, choose from over 16 AI providers, and organize multi-modal content for research. The platform supports podcast generation, intelligent search, and context-aware AI conversations.
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<div style="text-align: center;"><span style="font-size: 36px;">🎁</span></div></div>
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<div style="text-align: center;"><strong><h1>Miscellaneous</h1></strong></div>
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fquesma.com%2Fblog%2Flocal-llms-security-paradox%2F%3Futm_source=tldrwebdev/1/0100019a10c0c8c0-7438ec37-acc6-4228-abcd-b71f413c5325-000000/MlOzpCFyY_e3scNzofgm7nYUI21ZFT56pYJNMI3JwH8=428">
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<strong>The security paradox of local LLMs (9 minute read)</strong>
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<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
Local LLMs are vulnerable to prompt injection attacks that can lead to code vulnerabilities. Researchers discovered that smaller models like gpt-oss-20b can be tricked into generating malicious code, including backdoors and immediate remote code execution, with much higher success rates compared to frontier models. These attacks exploit the weaker reasoning and alignment capabilities of local models, turning a developer's workflow into an attack chain.
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fblog.google%2Ftechnology%2Fresearch%2Fquantum-echoes-willow-verifiable-quantum-advantage%2F%3Futm_source=tldrwebdev/1/0100019a10c0c8c0-7438ec37-acc6-4228-abcd-b71f413c5325-000000/Zl_-h-FM_HgZOFSduSTPB69pk0NQ9v6IpUdyHJ3Dxjg=428">
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<strong>Our Quantum Echoes algorithm is a big step toward real-world applications for quantum computing (5 minute read)</strong>
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Google Quantum AI has achieved a major breakthrough with its "Quantum Echoes" algorithm, demonstrating the first verifiable quantum advantage over classical supercomputers. The algorithm, run on the Willow quantum chip, is 13,000 times faster than the best classical algorithms in modeling molecular structures. This advancement allows for more precise measurement of systems, from molecules to black holes, and opens doors for applications in drug discovery and materials science.
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.theverge.com%2Fnews%2F804253%2Fmeta-ai-research-layoffs-fair-superintelligence%3Futm_source=tldrwebdev/1/0100019a10c0c8c0-7438ec37-acc6-4228-abcd-b71f413c5325-000000/KnKZCAMIQvHw-fJ5iPJzJBnH19p_wxKc_TbBBqjPd9w=428">
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<strong>Meta is axing 600 roles across its AI division (2 minute read)</strong>
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Meta is laying off 600 employees in its AI division, including the FAIR team, while simultaneously hiring for its superintelligence-focused TBD Lab.
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<h1><strong>Quick Links</strong></h1>
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fevanhahn.com%2Fscripts-i-wrote-that-i-use-all-the-time%2F%3Futm_source=tldrwebdev/1/0100019a10c0c8c0-7438ec37-acc6-4228-abcd-b71f413c5325-000000/Bfc7Lph9gkgTL68kDV-H2rdg8FZuT4zVxbpA6zzPs_8=428">
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<strong>Scripts I wrote that I use all the time (11 minute read)</strong>
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<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
This is a collection of frequently used shell scripts, categorized by function (clipboard, file management, internet, text processing, REPL launchers, dates/times, audio/video/pictures, process management, quick references, system management, and grab bag), offering practical solutions for tasks like clipboard management, file manipulation, media handling, and system control.
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fgithub.com%2Fmrousavy%2Freact-native-mmkv%2Freleases%2Ftag%2Fv4.0.0%3Futm_source=tldrwebdev/1/0100019a10c0c8c0-7438ec37-acc6-4228-abcd-b71f413c5325-000000/TzqSS_h8ldR8bC7x-mggAbQe6FLuu8E3GAc3Czb18j0=428">
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<strong>React Native MMKV 4.0 (1 minute read)</strong>
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React Native MMKV 4.0 is a major release featuring a full rewrite to Nitro, native MMKVCore integration, improved error handling, new features like useMMKVKeys(), and several bug fixes.
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.meetingcpp.com%2Fblog%2Fitems%2FLooking-at-binary-trees-in-Cpp.html%3Futm_source=tldrwebdev/1/0100019a10c0c8c0-7438ec37-acc6-4228-abcd-b71f413c5325-000000/eN6ScsB-5JiKW0vXYtemSuDgX2mhVj1a7X8RNjuz5pM=428">
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<strong>Looking at binary trees in C++ (5 minute read)</strong>
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<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
This article goes over an alternative C++ binary tree implementation using a vector of optionals and indices instead of raw pointers to potentially improve cache efficiency.
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Freact.dev%2Fblog%2F2025%2F10%2F16%2Freact-conf-2025-recap%3Futm_source=tldrwebdev/1/0100019a10c0c8c0-7438ec37-acc6-4228-abcd-b71f413c5325-000000/Dwqp4-aFWcXtGUknGkhC8jTVMvx-0CtCf4_bAhs1s9w=428">
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<strong>React Conf 2025 Recap (3 minute read)</strong>
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<br>
<span style="font-family: "Helvetica Neue", Helvetica, Arial, Verdana, sans-serif;">
The official recap of React Conf, which announced the React Foundation, React Compiler v1.0, and React 19.2.
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