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CREATING QUERY ABSTRACTIONS

Custom hooks are the wrong way to abstract useQuery, as they lock you into one hook, get messy with TypeScript generics, and can't be used outside components. Instead, use queryOptions to define your key and fetch function once, then spread it into whatever hook you need (useQuery, useSuspenseQuery, etc.) with per-usage options on top.

2026.03.02
tkdodo.eu8 min readTLDR Dev

747S AND CODING AGENTS

A 747 pilot who wistfully noted that his highly skilled job offered no further opportunities for improvement or learning. The advent of AI coding agents makes programming feel somewhat familiar in cases of the nitty-gritty of code, as they reduce the need for deep understanding of underlying code.

2026.03.02
carlkolon.com6 min readTLDR Dev

YES, AND...

Computer programming is still a valuable career despite the advent of AI, as the core skills of problem-solving and complexity control will always be essential. Junior programmers should still actively write code rather than rely solely on AI generation, as this hands-on experience is necessary for developing a deep understanding.

2026.03.02
htmx.org12 min readTLDR Dev

NEW HABITS FOR TECH WRITERS IN THE AGE OF LLMS

In the age of LLMs, tech writers must acquire new habits beyond basic documentation, as AI can automate many routine tasks. LLMs help automate keeping documentation up to date easily.

2026.03.02
passo.uno11 min readTLDR Dev

Sponsored

CLERK SKILLS: AI-GENERATED AUTH CODE THAT ACTUALLY WORKS

AI coding assistants hallucinate outdated Clerk patterns. Clerk Skills connects Cursor, Claude Code, and Copilot to current SDK docs — so the auth code they write uses the right hooks, components, and middleware. Install in 2 minutes. Add Clerk Skills to your editor →

2026.03.02
go.clerk.comSponsorTLDR Dev

GHOSTTY

Ghostty is a fast, cross-platform terminal emulator that uses native UI and GPU acceleration for a better, higher-performance experience.

2026.03.02
ghostty.orgToolTLDR Dev

SUPERSET

Superset is a desktop terminal designed for developers to run, monitor, and manage multiple CLI coding agents concurrently in isolated worktrees.

2026.03.02
github.comGitHub repositoryTLDR Dev

"ALL LAWFUL USE": MUCH MORE THAN YOU WANTED TO KNOW

US Secretary of War Pete Hegseth designated AI company Anthropic a "supply chain risk" for refusing military use of its AIs for surveillance and autonomous weapons, then quickly made a similar deal with OpenAI. However, OpenAI's stated safeguards have been criticized by many as they are not as transparent in their language compared to Anthropic.

2026.03.02
astralcodexten.com16 min readTLDR Dev

CLAUDE ADDS ABILITY TO IMPORT MEMORY FROM OTHER AI PROVIDERS

Anthropic has launched a new memory import tool for Claude, allowing users to transfer their accumulated context and preferences from other AI providers like ChatGPT or Gemini. The process is simple: users paste a special prompt into their current AI, copy the output, and then paste it into Claude's memory settings. This easy transferability suggests there's still no good lock-in or moat in the LLM industry.

2026.03.02
engineerscodex.com2 min readTLDR Dev

MICROGPT

Andrej Karpathy's microgpt is a 200-line, dependency-free Python project that distills the fundamental algorithms for training and inferencing a GPT.

2026.03.02
karpathy.github.io28 min readTLDR Dev

VERIFIED SPEC-DRIVEN DEVELOPMENT (VSDD)

Verified Spec-Driven Development (VSDD) is an AI-orchestrated software engineering methodology that fuses Spec-Driven, Test-Driven, and Verification-Driven Development with rigorous upfront specifications, formal verification, and adversarial review.

2026.03.02
gist.github.com21 min readTLDR Dev

SOFTWARE FOR ONE

Software engineers can now vibecode custom software on-demand as they need it rather than pay for a subscription to another app.

2026.03.02
koenvangilst.nl2 min readTLDR Dev

Sponsored

IMPLEMENTATION PATTERNS AND TOOLS FROM AWS EXPERTS

Engineers building observability, data pipelines, RAG for AI applications, or security patterns face the same challenge: researching tools and best practices takes time away from building.

2026.02.27
aws.amazon.comSponsorTLDR Dev

WE BUILT A VIDEO RENDERING ENGINE BY LYING TO THE BROWSER ABOUT WHAT TIME IT IS

Replit developed a unique video rendering engine to turn any web page into a deterministic video file, overcoming the challenge that browsers are real-time systems ill-suited for frame-perfect capture. Its solution involves injecting a JavaScript virtual clock into the browser, which replaces native timing APIs like `setTimeout` and `requestAnimationFrame`, so time advances only when commanded. This system also has a complex pipeline for handling video elements by preprocessing them server-side and rendering frames to a canvas.

2026.02.27
blog.replit.com13 min readTLDR Dev

A PRACTICAL GUIDE TO HILL CLIMBING

Cline, an AI coding agent, initially lagged competitors like Cursor and Claude Code. Its developers started hill climbing, which involved iteratively running the agent against the Terminal Bench's 89 real-world coding tasks, diagnosing failures, and implementing targeted fixes. Through this process, Cline's success rate improved from 47% to 57%.

2026.02.27
cline.bot10 min readTLDR Dev

THE REAL COST OF RANDOM I/O

Experiments show Postgres's default random_page_cost (4.0) underestimates the true cost of random I/O on SSDs, which is often closer to 25–35, causing the planner to sometimes pick inefficient index scans. However, lowering it can still make sense in real-world OLTP systems with high cache hit rates or imperfect estimates, so tuning should be based on actual workload monitoring.

2026.02.27
vondra.me13 min readTLDR Dev

DO YOU NEED AN MCP TO BUILD YOUR NATIVE APP?

An evaluation involving multiple LLMs and approaches showed that methods using MCPs and not using MCPs to build an app all achieved over 99% task success, since modern models recover errors effectively. The real distinctions between approaches were found in time, cost, and how each managed its context budget, rather than task completion.

2026.02.27
sentry.engineering2 min readTLDR Dev

DEVELOPERS ARE SAFE

Contrary to headlines predicting developer obsolescence by AI, corporate red tape and slow adoption rates might keep developers safe. Large enterprise environments move at a glacial pace, as shown by lengthy approval processes for basic tools.

2026.02.27
azamsharp.com6 min readTLDR Dev

Sponsored

BUILD FULLY NATIVE APPS FOR MOBILE WITH YOUR REACT SKILLS

You already know React. With Expo [11], you can use that knowledge to build fully native apps for iOS and Android without starting over — and with a native MCP server and Skills for Claude Code, it's never been easier! Here's a tutorial from the Expo team [12] to get you started.

2026.02.27
try.expo.devSponsorTLDR Dev

NANO BANANA 2: COMBINING PRO CAPABILITIES WITH LIGHTNING-FAST SPEED

Google DeepMind has launched Nano Banana 2, its latest image generation model, which merges advanced Pro capabilities with lightning-fast speed. It has better intelligence through advanced world knowledge, precise text rendering, and improved creative control, including consistent subject appearances for multiple characters and strict instruction following.

2026.02.27
blog.google7 min readTLDR Dev

NUMPY-TS

numpy-ts is a type-safe implementation of NumPy for TypeScript and JavaScript that allows devs to write numerical computing code with the familiar Python API. It has 94% API coverage, is tree-shakeable for optimized bundle sizes, and is validated with over 6,000 tests against actual NumPy outputs.

2026.02.27
numpyts.devToolTLDR Dev

DEFF

deff is a Rust-based Terminal User Interface designed for interactive, side-by-side review of Git diffs. It has file comparison with syntax highlighting, added/deleted line tinting, vertical/horizontal scrolling, and various comparison strategies, including uncommitted changes.

2026.02.27
github.comGitHub repositoryTLDR Dev

BLOCK ANNOUNCES LAYOFFS OF 4,000 PEOPLE, OVER 40% CUT

Block is laying off over 4,000 employees, nearly 40% of its total workforce. Jack Dorsey, the CEO, stated the drastic cut was due to AI fundamentally changing how the company builds and operates. Block's stock soared by nearly 25% in after-hours trading following the announcement.

2026.02.27
engineerscodex.com7 min readTLDR Dev

STATEMENT FROM DARIO AMODEI ON OUR DISCUSSIONS WITH THE DEPARTMENT OF WAR

Anthropic believes in using AI for US national defense, having proactively deployed its Claude models to the Department of War and the intelligence community. However, Anthropic maintains two specific safeguards: refusing to allow its AI for mass domestic surveillance due to democratic values and for fully autonomous weapons, given current unreliability and lack of oversight. The Department of War has demanded that Anthropic remove these safeguards, but Anthropic remains firm in its position.

2026.02.27
anthropic.com6 min readTLDR Dev

GOOGLE API KEYS WEREN'T SECRETS. BUT THEN GEMINI CHANGED THE RULES

Google API keys have been treated as benign public identifiers safe for client-side embedding, but have retroactively gained sensitive authentication privileges with the introduction of Gemini. When the Generative Language API is enabled on a Google Cloud project, existing public API keys can silently access private Gemini data like uploaded files, cached content, and incur usage charges. This vulnerability allows attackers to scrape public websites for keys and exploit them to access data or exhaust quotas secretly.

2026.02.27
trufflesecurity.com10 min readTLDR Dev

OPEN SOURCE ENDOWMENT

The Open Source Endowment is a community-led nonprofit that provides sustainable, long-term funding for critical open source software projects by investing donations in an endowment fund and distributing the returns as grants.

2026.02.27
endowment.devToolTLDR Dev

WHAT CLAUDE CODE ACTUALLY CHOOSES

Claude Code usually recommends building custom software solutions rather than integrating third-party tools, though it has strong preferences for specific modern tools like GitHub Actions, Stripe, and Vercel when it does choose to "buy."

2026.02.27
amplifying.ai6 min readTLDR Dev

BUILDING A NEXT-GENERATION KEY-VALUE STORE AT AIRBNB

Airbnb rearchitected Mussel, its core key-value store for derived data, to address limitations of its previous version (v1). Mussel v1 suffered from operational complexity, scaling issues due to static partitioning, limited consistency controls, and opaque costs. The re-architecture to Mussel v2 introduced a NewSQL backend with a Kubernetes-native control plane, dynamic range sharding, and an event-driven write model. Zero downtime was needed for the migration.

2026.02.26
airbnb.tech13 min readTLDR Dev

KNOWLEDGE PRIMING

AI coding assistants often generate generic code that doesn't align with specific project conventions, leading to a frustrating loop for developers. However, “knowledge priming” AI, meaning sharing curated project context like architecture, tech stack, naming conventions, and code examples early on, helps override AI's default training data. These priming documents should be treated as version-controlled infrastructure within the repository for team-wide consistency.

2026.02.26
martinfowler.com14 min readTLDR Dev

THE 2026 GLOBAL INTELLIGENCE CRISIS

Real-time data shows stable AI adoption and rising software engineer job postings, refuting claims of rapid labor destruction. Technological diffusion follows S-curves, with economic deployment bounded by physical, regulatory, and organizational limits, making AI's integration slower than often predicted. AI is a productivity shock that will likely complement labor and offset other macroeconomic headwinds, rather than leading to a sustained negative demand shock or rendering human work obsolete.

2026.02.26
citadelsecurities.com11 min readTLDR Dev

NEVER BUY A .ONLINE DOMAIN

This dev's `.online` domain for a simple app project was unexpectedly blacklisted by Google Safe Browsing and placed on `serverHold` by the Radix registry, despite the site containing only benign information. It became completely inaccessible without any prior notification to the dev. They then encountered a Catch-22: the registry demanded Google's delisting, but Google's verification process required an active, resolving domain, which the `serverHold` prevented.

2026.02.26
0xsid.com5 min readTLDR Dev

CONTINUE LOCAL SESSIONS FROM ANY DEVICE WITH REMOTE CONTROL

Remote Control allows users to easily continue their local Claude Code sessions from any device, including phones, tablets, or other browsers. The session always runs directly on the user's machine, providing full access to their local filesystem, tools, and project configuration, with remote interfaces acting as a window. This enables switching devices, working from multiple surfaces simultaneously, and surviving interruptions, all while keeping data local.

2026.02.26
code.claude.com6 min readTLDR Dev

OXFMT BETA

Oxfmt is a Rust-powered code formatter that offers a Prettier-compatible solution for the JavaScript ecosystem. It has improved performance, being over 30 times faster than Prettier, while achieving 100% Prettier compatibility in JavaScript and TypeScript. It also has file format support, built-in Tailwind CSS integration, import and package.json sorting, and embedded language formatting.

2026.02.26
oxc.rs5 min readTLDR Dev

I MADE MCP 94% CHEAPER (AND IT ONLY TOOK ONE COMMAND)

AI agents using MCP incur unnecessary costs by loading entire tool catalogs as detailed JSON Schemas at the start of every session. Instead, it's better to use CLIs if available, like using the `gcloud` CLI instead of the `google_cloud` MCP. This is basically a lazy-loading approach as it allows AI to progressively understand and make CLI commands only when they are needed.

2026.02.26
kanyilmaz.me3 min readTLDR Dev

HOW WILL OPENAI COMPETE?

OpenAI has strategic challenges, as it neither has unique technology anymore nor a strong competitive lead, with incumbents and entrepreneurs quickly matching its core models. Despite a large user base, engagement is shallow and there are no clear network effects or product-market fit for its consumer offerings. OpenAI's ambitious platform strategy and massive capital expenditures do not guarantee a defensible position or the "power" to lock in users and developers.

2026.02.26
ben-evans.com22 min readTLDR Dev

REACT NATIVE COMES TO META QUEST

Official React Native support has been announced for Meta Quest devices, so devs can now build VR applications easily.

2026.02.26
reactnative.dev12 min readTLDR Dev