When stuck on a problem during coding, devs should return to the "old gym" occasionally, where they grapple directly with problems rather than just handing them to AI first. While AI is great for automating mundane tasks like boilerplate generation and documentation, it has the potential to also overtake one's core skills of thinking, designing, and making architectural decisions.
Sapphire is a Rust-powered package manager for macOS inspired by Homebrew. It manages command-line tools (Formulae) and desktop applications (Casks). The project is structured into a core library for handling package management tasks and a command-line interface for user interaction.
ClickHouse, a fast analytical database, has introduced a new optimization called "lazy materialization" to improve query performance. This technique delays reading column data until it's absolutely necessary, especially benefiting Top N queries with large datasets and LIMIT clauses. An example of lazy materialization showed a query being sped up from 219 seconds to 139 milliseconds without SQL changes.
Rowboat is an AI-powered platform that lets users quickly build multi-agent workflows. Users can define a task and then Rowboat automatically generates the necessary agents and tools. It can be integrated into applications using either an HTTP API or a Python SDK.
This article shows how to create an AI agent using Go and Anthropic's Claude API in about 400 lines of code. The agent is able to use tools to read, list, and edit files through structured function calls.
Google has abandoned its plans to phase out third-party cookies in Chrome and will not roll out a one-click prompt to disable them. The company's Privacy Sandbox initiative, which was supposed to develop a privacy-preserving alternative to cookies for targeted advertising, has essentially been called off. This decision comes after Google struggled to find a universally acceptable solution and has faced increasing antitrust scrutiny regarding its dominance in the ads industry.
Supabase has announced a $200M Series D funding round with Accel, bringing its valuation to $2B.
15 challenging CSS puzzles where you must align pegs with holes by adding CSS properties to divs.
Kulve is a native and cross-platform Twitch application for Apple platforms that uses a unique tech stack of SwiftUI for the UI and C++ for the backend.
Elements that require JavaScript can be hidden when JavaScript is disabled with the use of a d-js-required class and a noscript tag.
Airbnb's User Signals Platform (USP) processes over one million events per second to power real-time personalization across its platform. The USP uses a Lambda architecture, combining Flink-based real-time streaming with offline batch processing to ingest, transform, and store user actions in a versioned key-value store. This platform exposes a clean interface for product teams to define signals and user segments without needing stream processing expertise.
Python 3.14, expected in late 2025, will introduce template strings (t-strings), a safer and more flexible approach to string processing compared to f-strings. T-strings evaluate to a `Template` object, separating the string from its interpolated values, which allows for custom processing and escaping to prevent vulnerabilities like SQL injection. Devs can access the raw string parts and values through properties like `.strings` and `.values` or iterate over the template to process each part individually.
This developer loves the Kate text editor and has used it for many years. They go over their Kate setup, including preferred plugins, custom settings for language servers and debug adapters, and personalized shortcuts. Some productivity-oriented features from Kate that have helped them a lot are quick file switching, action search, build and run capabilities, and more.
Pipelining is a programming language feature that allows omitting an argument by passing the previous value. Pipelining syntax is great for its readability, editing usability, and integration with IDE code discovery.
Open Codex is a fully open-source command-line AI assistant inspired by OpenAI Codex that runs locally using models like phi-4-mini. It requires no API key. Open Codex translates natural language into shell commands. It prompts for confirmation before execution. The assistant is available for macOS, Linux, and Windows.
Hako is an embeddable, lightweight, secure, and high-performance JavaScript engine forked from PrimJS. It compiles to WebAssembly for memory safety and provides a built-in sandboxing mechanism to restrict JavaScript code capabilities.
Local LLM inference is promising but not yet production-ready. While local LLMs are cheaper, private, and can work offline, their performance is still not good enough for most use cases. Also, it's difficult to find and deploy suitable small models for specific tasks.
Philip Laine developed Spegel to solve container image registry downtime issues. Microsoft then contacted Laine and expressed interest in Spegel, leading to discussions about a potential collaboration. However, Microsoft created Peerd, a similar project, and included code and tests directly copied from Spegel, with minimal attribution. Despite this, Spegel is still a successful project, but it shows the challenges open-source maintainers face when interacting with large corporations.
Hosting a blog on a Nintendo Wii running NetBSD is possible - the console is actually surprisingly capable performance-wise.
Demis Hassabis (CEO of Google DeepMind) predicts that AI will cure all diseases within the next decade, though the author of this article is skeptical of the claim.
Recent AI models like o3, o4-mini, and Gemini 2.5 Pro have made AI-assisted search-based research genuinely useful and reliable.
Claude Code is a command-line tool for agentic coding. The workflow can be optimized by using `CLAUDE.md` files for context, curating allowed tools, and using bash tools and MCP. Some common workflows are shown in practice, like "explore, plan, code, commit" and "write tests, commit; code, iterate, commit."
2025.04.21·links.tldrnewsletter.com·23 min read·TLDR Web Dev A recent benchmark comparing server-side rendering performance found that @fastify/react is 7x faster than Next.js, handling 347 requests per second versus Next's 49. The test used minimal setups, showing that Fastify-based integrations like @fastify/vue and @fastify/react are leaner and faster than full-featured metaframeworks.
Google's AMP for email tried to modernize email by adding interactive features, similar to its earlier AMP project for mobile web pages. AMP for email required significant effort to implement and support, only worked in a limited number of email clients, and eventually failed to gain widespread adoption. While Google still uses AMP internally as "Dynamic Email," the project has been largely abandoned.
Relying on LLMs can prevent learning opportunities for both a developer and their team. Engineers should resist immediately using LLMs for challenging tasks as the temporary struggle can lead to growth and better code.
The traditional `try/catch` method is not great. Better alternatives include Go-style return tuples and Monadic-style Result types, which treat errors as values and offer more explicit error management.
Websites still restrict password length, even when long, complex passwords are more secure. One commenter explains that the limitations aren't related to database size or DDoS prevention, but rather due to the input length limits of password-hashing algorithms like Bcrypt. Others suggest limits are holdovers from older assumptions about password memorability, legacy systems, or a desire to reduce customer service requests related to forgotten passwords.
Sponsored
In this live session, the Sentry team will start with a Laravel app that's barely held together by try/catch blocks, and Log::debug's — and get everything back to green check-marks [10] and passing tests by
Websites made with the popular shadcn/ui component library usually look the same. tweakcn is a visual, no-code editor for shadcn/ui components that helps devs customize components visually. You can create custom themes or use pre-built ones.
This project uses AI to analyze GitHub repositories or local codebases and generate beginner-friendly tutorials explaining the code's functionality and structure.
Sidekick is an open-source, agentic CLI-based AI tool designed as an alternative to tools like Claude Code and Copilot. It lets devs use various LLM providers without vendor lock-in and supports features like MCP, undo functionality, and model switching.
OpenAI is in talks to acquire AI IDE Windsurf for around $3 billion, which seems like a high price given the competitive landscape. At the same time, Google's quiet but effective strategy of improving AI models and securing talent has led to its current lead, with models like Gemini 2.5 outperforming others. Apple's lack of investment in necessary resources and data collection has left them lagging behind in AI development.
arXiv, created by American physicist Paul Ginsparg nearly 35 years ago, is an online repository that allows researchers to share findings and papers before peer review. The platform hosts over 2.6 million papers, receives 20,000 monthly submissions, and has over 5 million monthly users. Ginsparg is still deeply involved, constantly improving arXiv's quality control and filtering of submissions.
While many languages support generics, serialization, and metaprogramming at compile time, Zig enforces strict boundaries: no access to the host machine during cross-compilation, no dynamic code generation (#eval-style mixins), no custom syntax or DSLs, and no runtime type info (RTTI). Instead, Zig has partial evaluation and specialization, allowing for expressive and safe compile-time behavior.
A comprehensive Tailwind CSS cheat sheet to instantly find all utility classes and their CSS properties in one place.
Serving web pages with a single process has advantages in managing shared state for detecting and mitigating abuse (rate limiting and caching) as it makes implementation and experimentation simpler.
Five ways to reduce HTML file size to improve website performance and Core Web Vitals include checking file sizes, minifying and compressing files, breaking up long pages, limiting large inline resources, and avoiding excessive responsive markup.
Internal Facebook emails revealed during an antitrust trial show that Facebook executives, including Mark Zuckerberg, closely monitored Instagram's rapid growth in the early 2010s and considered acquiring it to neutralize the competitive threat.
DeepSeek's open-source distributed file system is called 3FS (Fire-Flyer File System). 3FS abstracts away the complexities of distributed storage, allowing users to interact with files as if they were on a local system. The system uses meta, management, storage, and client nodes, and has something called CRAQ that achieves strong consistency with fault tolerance by treating nodes as a chain.
Spotify releases its mobile app weekly with hundreds of changes for over 675 million users. Its Release team oversees this process, balancing speed and quality with the help of tools and a dedicated Release Manager. This manager coordinates communication, prioritizes bug fixes, and helps with smooth feature rollouts.
2025.04.18·engineering.atspotify.com·11 min read·TLDR Web Dev A common issue faced in frontend state management is the synchronization of related states like columns and filters in a data table UI. This article walks through several flawed approaches—direct setters, gate setters, and useEffect—and ultimately recommends deriving shared state through selectors to avoid duplication, glitches, and refetches. State should be shaped so that dependencies are implicit and managed reactively, not manually.
Two years after predicting that AI would augment rather than replace developers, Josh Comeau reaffirms that human devs are still necessary for coding. Tools like Cursor and Claude Sonnet have made coding easier and faster, but still require skilled oversight and guidance.
Understanding PostgreSQL as a system of files, processes, and configurations makes understanding databases easier. Devs get more control over the database by manually setting up PostgreSQL instead of relying on package managers or Docker, making debugging, provisioning, and versioning easier.
Mandatory pair programming can shield devs from harmful individual metric tracking and micromanagement. By restructuring task management systems to assign tickets to pairs or groups, individual accountability is removed, so arbitrary metrics to track "productivity" are meaningless.
2025.04.18·rethinkingsoftware.substack.com·6 min read·TLDR Web Dev Google is releasing an early version of Gemini 2.5 Flash, its new AI model, which has improved reasoning capabilities while maintaining speed and cost-efficiency. The model uses a hybrid reasoning approach, allowing devs to control the "thinking" process and set a thinking budget to balance quality, cost, and latency. Gemini 2.5 Flash can perform complex tasks more accurately by reasoning through thoughts before responding.
2025.04.18·developers.googleblog.com·6 min read·TLDR Web Dev Font Tester is a browser extension that makes typography selection and testing on any website easier by providing live previews, a font library, custom font uploads, and comparison tools.
React Agent Hooks is a library that transforms React hooks into LLM tools, letting devs create AI agents that can interact with and modify application state through familiar React semantics.
SQLite provides transactional integrity when using virtual tables, which allow accessing external data sources as if they were regular tables. It uses rollback journals and super-journals to maintain atomicity across multiple databases or virtual tables. It also has a two-phase commit process, with an `xSync` hook for durability and hooks `xCommit` and `xRollback` for cleanup.
Many developers ask if React is accessible, but a better question is whether React makes building accessible apps easier or harder. React itself doesn't prevent accessibility, but common developer habits, like overusing div elements, misusing ARIA, and poor SPA focus management, usually lead to inaccessible experiences.