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OPEN NOTEBOOK

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.

2025.10.23
github.comGitHub repositoryTLDR Dev

THE SECURITY PARADOX OF LOCAL LLMS

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.

2025.10.23
quesma.com9 min readTLDR Dev

OUR QUANTUM ECHOES ALGORITHM IS A BIG STEP TOWARD REAL-WORLD APPLICATIONS FOR QUANTUM COMPUTING

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.

2025.10.23
blog.google5 min readTLDR Dev

SCRIPTS I WROTE THAT I USE ALL THE TIME

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.

2025.10.23
evanhahn.com11 min readTLDR Dev

REACT NATIVE MMKV 4.0

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.

2025.10.23
github.com1 min readTLDR Dev

LOOKING AT BINARY TREES IN C++

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.

2025.10.23
meetingcpp.com5 min readTLDR Dev

REACT CONF 2025 RECAP

The official recap of React Conf, which announced the React Foundation, React Compiler v1.0, and React 19.2.

2025.10.23
react.dev3 min readTLDR Dev

BUILD YOUR OWN DATABASE

This article goes over how to build a key-value database from scratch. It starts with a simple file-based approach for storing data, but explains its inefficiency for updates and deletes. It then introduces append-only files, compaction strategies to manage file size, and indexing to improve search performance. Finally, it explains how these techniques combine to form a Log-Structured Merge Tree (LSM Tree), used in many real-world key-value databases.

2025.10.22
nan.fyi13 min readTLDR Dev

MEASURING ENGINEERING PRODUCTIVITY

This is a system for measuring engineering productivity effectively, with an emphasis on visibility and context over strict numerical evaluation. Solid productivity happens by starting small, being explicit with expectations, and being open to feedback to ensure the system serves as a tool for improvement rather than a weapon for punishment.

2025.10.22
justoffbyone.com12 min readTLDR Dev

YOU CANNOT OUTSOURCE UNDERSTANDING

Businesses often try to eliminate developers, believing they can achieve software benefits without them, but this approach consistently fails. The core issue is that software development isn't just about production, it's about understanding and adapting to complex business needs, which cannot be outsourced, automated, or abstracted away.

2025.10.22
russmiles.substack.com6 min readTLDR Dev

SOLVING THE WRONG PROBLEM

AI-assisted coding, despite its impressive capabilities, may be addressing the wrong problem in software development. AI agents often recreate existing code due to the nature of LLMs and training data. Furthermore, AI is primarily benefiting less experienced developers and masking underlying issues like inadequate software engineering education and a focus on speed over quality.

2025.10.22
ufried.com21 min readTLDR Dev

THE PROGRAMMER IDENTITY CRISIS

The rise of AI and LLMs threatens the core identity of programmers as craftspeople. Vibe-coding and specification engineering have turned programmers into operators rather than creative problem-solvers. This shift removes a lot of the joy and fulfillment of programming.

2025.10.22
hojberg.xyz14 min readTLDR Dev

CHATGPT ATLAS

OpenAI has released a new browser, ChatGPT Atlas. It allows users to open a ChatGPT sidebar for content summarization, data analysis, and product comparison on any website. It remembers user preferences and browsing history (with privacy controls) to provide relevant and personalized details. It also allows ChatGPT to interact with sites to complete tasks like research and shopping.

2025.10.22
links.tldrnewsletter.comToolTLDR Dev

NEXT.JS 16

Next.js 16 is now available, with improvements to Turbopack, caching, and the Next.js architecture. This release introduces Cache Components for more explicit caching, Next.js DevTools MCP for AI-assisted debugging, and proxy.ts to clarify the app's network boundary. Turbopack is now the default bundler, offering faster builds and refreshes, and the update also has better routing, improved caching APIs, and React 19.2 features.

2025.10.22
nextjs.org14 min readTLDR Dev

KATAKATE

Katakate is an open-source platform for creating and managing secure, lightweight VM sandboxes for executing untrusted code at scale. It uses Kubernetes, Kata, and Firecracker. It offers a CLI, API, and Python SDK for managing sandboxes, and caters to use cases such as AI agents, custom serverless functions, and hardened CI/CD runners.

2025.10.22
github.comGitHub repositoryTLDR Dev

LLMS CAN GET "BRAIN ROT"!

Continuous exposure to low-quality, "junk" web data can cause a lasting cognitive decline in LLMs. Through controlled experiments, researchers found that pre-training LLMs on data from X selected for high engagement or sensationalism negatively impacted reasoning, long-context understanding, and ethical behavior. The primary error was identified as "thought-skipping," where models truncated reasoning steps, and standard fine-tuning methods only partially mitigated the damage, showing a persistent change in the models' representation.

2025.10.22
llm-brain-rot.github.io8 min readTLDR Dev

POE BASICS AND BEYOND: WHAT EVERY ENGINEER SHOULD KNOW

Power over Ethernet (PoE) delivers both data and power over standard Ethernet cables to devices like IP cameras and VoIP phones. This article explains the difference between endspan (PoE-enabled switches) and midspan (PoE injectors) devices, along with the evolution of PoE standards (IEEE 802.3af/at/bt) to support higher power levels.

2025.10.22
edn.com7 min readTLDR Dev

GETTING DEEPSEEK-OCR WORKING ON AN NVIDIA SPARK VIA BRUTE FORCE USING CLAUDE CODE

Claude Code can be used to get DeepSeek-OCR running on an NVIDIA Spark by automating the process within a Docker sandbox. Initially, Claude Code struggled to do this due to PyTorch and CUDA compatibility issues, but after being suggested different PyTorch versions, Claude Code found a compatible version and completed the task. Claude Code generated notes, scripts, and documentation, including a performance comparison of different prompts for OCR.

2025.10.22
simonwillison.net10 min readTLDR Dev

AI PR INTRODUCES BUGS IN LINUX LTS

A Linux kernel maintainer used AI to generate code and backports, resulting in vulnerabilities, bugs, and sloppy commits in Linux LTS kernels.

2025.10.22
threadreaderapp.com10 min readTLDR Dev

JUST USE CURL

Just use cURL for making HTTP requests, instead of using bloated and unnecessarily complex GUI-based alternatives.

2025.10.22
justuse.org4 min readTLDR Dev

THE DEATH OF THREAD PER CORE

Data processing has shifted away from thread-per-core models due to increasing core counts, improved IO speeds, and the need to handle skewed data distributions effectively at the data processing layer itself.

2025.10.22
buttondown.com4 min readTLDR Dev

RETHINKING ASYNC LOOPS IN JAVASCRIPT

Using `await` within JavaScript loops, specifically `for` loops and `map()` functions, when dealing with asynchronous operations, has some pitfalls. Using `await` in a `for` loop results in sequential execution, while `map()` doesn't inherently wait for promises to resolve. Instead, it's better to use `Promise.all()` with `map()` for parallel execution, but this has "fail-fast" behavior, so alternatives like `Promise.allSettled()` or inline error handling are better.

2025.10.21
allthingssmitty.com5 min readTLDR Dev

PRODUCTION RAG: WHAT I LEARNED FROM PROCESSING 5M+ DOCUMENTS

After building Retrieval Augmented Generation (RAG) systems for two large datasets, this dev found that initial success with Langchain and Llamaindex was misleading, as real-world performance required much more refinement. The most impactful improvements came from query generation, reranking, custom chunking strategies, incorporating metadata, and query routing.

2025.10.21
blog.abdellatif.io3 min readTLDR Dev

STATE AND RERENDERS

State-based rendering (like React does) re-renders entire subtrees when state changes, even if components don't use the updated state, requiring manual optimization. Signal-based rendering, however, only re-renders components that directly access a signal's value. This granular reactivity makes state management easier, reduces bundle sizes, and makes performance more predictable.

2025.10.21
jovidecroock.com6 min readTLDR Dev

TODAY IS WHEN AMAZON BRAIN DRAIN FINALLY CAUGHT UP WITH AWS

A major AWS outage occurred in the US-East region, causing widespread internet disruptions. This outage was caused by a "brain drain" of senior AWS engineers with crucial institutional knowledge who left due to layoffs and disliked company policies. This loss of experienced personnel is making AWS' ability to quickly detect and resolve complex infrastructure problems worse.

2025.10.21
theregister.com7 min readTLDR Dev

AI HYPE IS EXCESSIVE, BUT ITS PRODUCTIVITY GAINS ARE REAL

This dev initially dismissed AI due to excessive hype because of how companies unrealistically claimed it could solve all problems. However, their perspective changed after using AI-powered coding tools like Cursor, especially the autocomplete feature. They found these tools, especially the agent panel, when used with clear instructions, boosted their productivity by helping with code comprehension, scaffolding, and debugging.

2025.10.21
pcloadletter.dev3 min readTLDR Dev

AI INTERVIEW SUCCESS: AN INTERVIEWER'S INSIDE GUIDE

The key to success in AI-assisted coding interviews is using AI tools collaboratively while maintaining full technical ownership. This means treating AI as a development accelerator rather than a complete solution generator, and being able to explain every technical decision made.

2025.10.21
canva.dev5 min readTLDR Dev

CLAUDE CODE ON THE WEB

Anthropic has launched Claude Code on the web, a beta feature allowing users to delegate coding tasks to Claude directly from their browser. This cloud-based service allows for parallel execution of coding tasks in a sandboxed environment, connecting to GitHub repos and providing real-time progress tracking.

2025.10.21
anthropic.com2 min readTLDR Dev

INTRODUCING PERRON: RAILS-BASED STATIC SITE GENERATOR

Perron is a new open-source Rails-based static site generator for streamlined website creation for Rails developers. It allows devs to use their existing Rails knowledge and familiar tools like ViewComponent and Tailwind CSS to build static sites. The generator has features such as resource management, content scheduling, markdown support, and HTML transformations, alongside a library of snippets and templates.

2025.10.21
railsdesigner.com6 min readTLDR Dev

THE SCARIEST “USER SUPPORT” EMAIL I'VE EVER RECEIVED

This dev received a suspicious user support email claiming a cookie consent issue on his app's website, which doesn't actually use cookies. The sender provided a link disguised as a screenshot, leading to a Captcha that, upon completion, prompted Takuya to run a dangerous command in his terminal. This command would have downloaded and executed a shell script from a remote server, a phishing attempt.

2025.10.21
devas.life3 min readTLDR Dev

IS AI ADOPTION SLOWING DOWN?

The Ramp Economics Lab shows that AI adoption is showing signs of slowing down, with paid AI adoption declining in September (the second decline of the year). While AI companies like OpenAI and Anthropic are generating a lot of revenue ($20+ billion and $9 billion respectively), we may be reaching a point where more AI use cases are being developed than the market can actually adopt. Businesses have experimented with AI and may want to optimize their current implementations before taking on new use cases.

2025.10.21
open.substack.com7 min readTLDR Dev

BERT IS JUST A SINGLE TEXT DIFFUSION STEP

By fine-tuning a BERT-like model with variable masking rates, mimicking a discrete diffusion process, it can be repurposed for text generation, showing that BERT's masked language modeling is essentially a single step of text diffusion.

2025.10.21
nathan.rs9 min readTLDR Dev

IMPROVING THE TRUSTWORTHINESS OF JAVASCRIPT ON THE WEB

Web Application Integrity, Consistency, and Transparency (WAICT) is a W3C-backed system designed to improve the trustworthiness of JavaScript on the web by providing integrity, consistency, and transparency guarantees through integrity manifests, public logs, and trusted third parties.

2025.10.21
blog.cloudflare.com19 min readTLDR Dev

AWS SERVICE HEALTH - OCT 20, 2025

An operational issue in the US-EAST-1 region involving increased error rates and latencies across multiple AWS services due to DNS resolution issues and subsequent EC2 instance launch impairments, causing many websites to go down.

2025.10.21
health.aws.amazon.com14 min readTLDR Dev

Sponsored

TESTING

If slow QA processes bottleneck you or your software engineering team and you're releasing slower because of it — you need to check out QA Wolf.

2025.10.20
qawolf.comSponsorTLDR Dev

AGENTS 2.0: FROM SHALLOW LOOPS TO DEEP AGENTS

Shallow agents use simple while loops and rely on context windows for memory, making them great for simple 5-15 step tasks but prone to failure on complex multi-step problems due to context overflow and loss of focus. Deep Agents address these limitations through four architectural improvements: explicit planning with maintained to-do lists, hierarchical delegation to specialized sub-agents, persistent external memory storage, and detailed context engineering with comprehensive instructions.

2025.10.20
philschmid.de5 min readTLDR Dev

LAZY FIELDS FOR 30X SPEEDUP WITHOUT DECORATORS OR TRANSFORMS

The Joist TypeScript ORM achieved a 30x performance speedup by making class fields lazy without using decorators or transforms. It used `Object.create()` to skip constructor field initialization and moved relations to the prototype, allowing relations to only be created when actually accessed rather than eagerly initializing all relations for every instance. This approach reduced memory allocation costs, especially for entities with many relations (30+ in some cases).

2025.10.20
joist-orm.io8 min readTLDR Dev

THE GREAT SOFTWARE QUALITY COLLAPSE: HOW WE NORMALIZED CATASTROPHE

Software quality is collapsing. The author cites examples like a calculator app leaking 32GB of RAM and AI-generated code containing many more vulnerabilities than human-generated code. Big Tech's response is to spend billions on infrastructure instead of addressing underlying engineering issues.

2025.10.20
techtrenches.substack.com14 min readTLDR Dev

THE ACCOUNTABILITY PROBLEM

In software development, business partners often misunderstand the iterative nature of software creation and impose unrealistic, project-based governance. To bridge this gap, software departments should focus on delivering demonstrable business results, similar to other departments like Sales or Marketing, by creating new opportunities. An example of this is taking on "Product Bets,” which are strategic investments summarized by a business outcome, a sponsor, an estimated present value, and a maximum wager.

2025.10.20
jamesshore.com53 min readTLDR Dev

SQL ANTI-PATTERNS YOU SHOULD AVOID

Some common SQL anti-patterns include mishandling CASE WHEN statements, using functions on indexed columns, overusing DISTINCT, excessive view layer stacking, using SELECT * in views, and using nested subqueries. Treating SQL like production code, including reviewing and optimizing, can prevent these issues and improve data trust.

2025.10.20
datamethods.substack.com5 min readTLDR Dev