URL is state 🔗, how AI broke interviews 💼, AI code review noise 🔊

URLs can be used as first-class state containers in web apps. They provide inherent benefits like shareability, bookmarkability, and history support ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌  ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ 

Sign Up |Advertise|View Online TLDR Together With  TLDR Dev 2025-11-03 Mobile app testing on the devices your customers actually use, with no metering and no restrictions (Sponsor) Flaky mobile tests blocking your releases? Struggling to manually test apps on dozens of device configurations? QA Wolf gets mobile apps to 80% automated test coverage in under 4 months, with zero flakes guaranteed. Tests run on real iOS devices in the QA Wolf cloud + Android emulators simulating real-world conditions. And it's not just the easy stuff. QA Wolf handles the tests you've been avoiding: Apple + Google Pay, in-app purchases, accessibility testing, performance testing (load times, memory, battery drain), localization... You get: unlimited parallel test runs, 24-hour test maintenance, and human-verified bug reports. Built on open-source Appium (no vendor lock-in). 👉 See QA Wolf 🧑‍💻 Articles & Tutorials Your URL Is Your State (13 minute read) URLs can be used as first-class state containers in web apps. They provide inherent benefits like shareability, bookmarkability, and browser history support, making web apps more resilient and predictable. Different parts of the URL (path segments, query parameters, anchor fragments) can encode various types of state and provide best practices for implementation, including handling defaults gracefully, debouncing updates, and choosing between `pushState` and `replaceState`. SQLite concurrency and why you should care about it (8 minute read) SQLite can suffer from database locking issues, especially during transactions. Jellyfin implemented three locking strategies: No-Lock, Optimistic locking (retry on failure), and Pessimistic locking (exclusive write lock) to mitigate these problems. The new locking strategies improved stability, providing users with options to avoid locking issues. Emergent introspective awareness in large language models (19 minute read) Anthropic's research shows the potential for introspection in AI models like Claude, investigating whether they can accurately report on their internal states and control their thoughts. Using "concept injection," researchers found limited but promising evidence that Claude models, especially Opus 4 and 4.1, can detect and identify injected concepts and recognize unintended outputs by referencing their "intentions." The models also showed some ability to modulate their internal representations based on instructions and incentives, suggesting a degree of control. 🧠 Opinions & Advice Artificial Intelligence Broke Interviews (22 minute read) AI has disrupted the technical interview process, which was already flawed, by enabling candidates to easily cheat and produce perfect solutions. This has led to companies losing trust in the authenticity of candidates and reverting to in-person interviews to assess real-time reasoning and collaboration skills. A hybrid model may be the best compromise, with lightweight remote screens followed by in-person evaluations that prioritize dialogue and transparent tool usage. AI scrapers request commented scripts (13 minute read) AI scrapers request commented-out JavaScript files, showing their unsophisticated parsing methods. Some countermeasures to this include IP filtering, serving decompression bombs, and poisoning training data for LLMs. 🚀 Launches & Tools Wavesurfer.js (GitHub Repo) Wavesurfer.js is an interactive JavaScript library for rendering audio waveforms and enabling playback in web applications. It has a range of features, including plugins for regions, timelines, minimaps, recording, and spectrogram visualizations. Styling is customizable using CSS and Shadow DOM. Chef (GitHub Repo) Chef is an AI app builder specializing in full-stack web applications with backend integration. It uses Convex's open-source reactive database and APIs for codegen. Pipelex (GitHub Repo) Pipelex is an open-source language and framework for building repeatable AI workflows, letting devs create complex AI tasks through composable "pipes" rather than monolithic prompts. It abstracts API calls and uses structured "Concepts" for data typing to help create reliable and understandable workflows. 🎁 Miscellaneous Drowning in AI Code Review Noise? A Framework to Measure Signal vs. Noise (8 minute read) AI code review tools often generate excessive comments, with up to 80% being irrelevant noise that buries critical issues. A framework for measuring the signal-to-noise ratio of AI code review tools is to classify comments into three tiers based on severity: critical, important, and noise. The signal ratio, calculated as (Tier 1 + Tier 2) / Total comments, should ideally be above 60% to ensure the tool is effective and not hindering developer productivity. DigitalOcean is chasing me for $0.01: What it taught me about automation (9 minute read) This dev received multiple emails from DigitalOcean for an outstanding balance of $0.01. These unnecessary notifications have hidden costs, including environmental impact and user frustration. DigitalOcean, like financial institutions, could implement a small balance waiver to improve user experience and reduce overhead. ⚡ Quick Links Introducing architecture variants: amd64v3 now available in Ubuntu 25.10 - Foundations (3 minute read) Ubuntu 25.10 introduces architecture variants, specifically amd64v3, allowing users to opt in to optimized packages for modern processors, trading off compatibility with older hardware for potential performance gains. Ask HN: Where to begin with "modern" Emacs? (Hacker News Thread) A Neovim user looks for guidance on modern Emacs configuration and top-tier plugins, with various commenters recommending resources such as Systemcrafters, minimal-emacs, and Bedrock, as well as strategies like starting with vanilla Emacs and gradually adding packages. Roadmap for improving the type checker (24 minute read) This roadmap outlines ongoing and future efforts to improve the Swift compiler's expression type checking. Claude Code Can Debug Low-level Cryptography (8 minute read) Claude Code successfully debugged complex low-level cryptography issues in a new Go implementation of the ML-DSA algorithm. Want to advertise in TLDR? 📰 If your company is interested in reaching an audience of web developers and engineering decision makers, you may want to advertise with us. Want to work at TLDR? 💼 Apply here or send a friend's resume to jobs@tldr.tech and get $1k if we hire them! If you have any comments or feedback, just respond to this email! 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