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The Shifting Line Between CSS States and JavaScript Events
CSS has always had pseudo-classes that style things when baed on user interactions. Recent features, however, are blurring the line between what CSS "listens" for and how they are alternatives to what Javascript typically listens for. The Shifting Line Between CSS States and JavaScript Events originally handwritten and published with love on CSS-Tricks . You should really get the newsletter as well.
NixOS 26.05
Layer 2: A Engenharia Secreta Que Destrava a Velocidade do Ethereum [PT-BR]
Quando comecei a trabalhar com aplicações descentralizadas há mais de uma década, lembro bem da frustração de pagar US$ 50 em taxas de transação para mover alguns tokens na rede Ethereum durante um pico de congestionamento. Era um problema técnico que ameaçava inviabilizar todo o ecossistema. Hoje, observo com entusiasmo profissional como as soluções de Layer 2 transformaram radicalmente esse cenário, abrindo portas para casos de uso que antes eram economicamente impraticáveis — especialmente aqui no Brasil, onde a tokenização de ativos e os pagamentos em stablecoins crescem em ritmo acelerado. O problema fundamental: o trilema da escalabilidade Para entender por que as soluções de segunda camada são tão importantes, precisamos compreender o trilema da blockchain proposto por Vitalik Buterin. Uma rede precisa equilibrar três pilares: descentralização, segurança e escalabilidade. O Ethereum, em sua arquitetura original, priorizou os dois primeiros, processando apenas cerca de 15 a 30 transações por segundo (TPS) na camada base. Para se ter dimensão, redes de pagamento tradicionais como a Visa processam milhares de transações por segundo. Quando o DeFi explodiu em 2020 e 2021, e novamente com o boom dos NFTs, a rede simplesmente não dava conta da demanda. As taxas de gas dispararam, e usuários comuns foram literalmente expulsos pelo custo. Em meus projetos de consultoria, atendi empresas brasileiras que desistiram de iniciativas Web3 justamente porque os custos operacionais inviabilizavam o modelo de negócio. A pergunta que sempre me faziam era: "Como cobrar R$ 5 de um cliente se a taxa da transação custa R$ 30?". A resposta estava — e está — nas camadas de segunda geração. Como funcionam as soluções de Layer 2 O conceito central das soluções de Layer 2 é elegante: em vez de processar todas as transações diretamente na blockchain principal (Layer 1), executamos a maior parte do processamento "fora da cadeia" e depois enviamos apenas uma prova compacta de volta para o
🔥 lumina-ai-inc / chunkr - Vision infrastructure to turn complex documents into RAG/LLM
GitHub热门项目 | Vision infrastructure to turn complex documents into RAG/LLM-ready data | Stars: 3,729 | 284 stars today | 语言: Rust
🔥 reacherhq / check-if-email-exists - Check if an email address exists without sending any email,
GitHub热门项目 | Check if an email address exists without sending any email, written in Rust. Comes with a ⚙️ HTTP backend. | Stars: 9,028 | 144 stars today | 语言: Rust
🔥 microsoft / qdk - Microsoft Quantum Development Kit, including the Q# programm
GitHub热门项目 | Microsoft Quantum Development Kit, including the Q# programming language, resource estimator, and Quantum Katas | Stars: 955 | 0 stars today | 语言: Rust
🔥 spacedriveapp / spacedrive - Spacedrive is an open source cross-platform file explorer, p
GitHub热门项目 | Spacedrive is an open source cross-platform file explorer, powered by a virtual distributed filesystem written in Rust. | Stars: 38,444 | 14 stars today | 语言: Rust
🔥 metalbear-co / mirrord - Run any process, on your machine or in an AI agent's environ
GitHub热门项目 | Run any process, on your machine or in an AI agent's environment, as if it were a pod in your Kubernetes cluster: real env vars, DNS, network, traffic. | Stars: 5,164 | 7 stars today | 语言: Rust
🔥 apache / datafusion - Apache DataFusion SQL Query Engine
GitHub热门项目 | Apache DataFusion SQL Query Engine | Stars: 8,922 | 4 stars today | 语言: Rust
🔥 vercel-labs / skills - The open agent skills tool - npx skills
GitHub热门项目 | The open agent skills tool - npx skills | Stars: 24,237 | 250 stars today | 语言: TypeScript
🔥 diegosouzapw / OmniRoute - Never stop coding. Free AI gateway: one endpoint, 160+ provi
GitHub热门项目 | Never stop coding. Free AI gateway: one endpoint, 160+ providers (50+ free), connect Claude Code, Codex, Cursor, Cline & Copilot to FREE Claude/GPT/Gemini. RTK+Caveman stacked compression saves 15-95% tokens, smart auto-fallback, MCP/A2A, multimodal APIs, Desktop/PWA. | Stars: 7,754 | 155 stars today | 语言: TypeScript
🔥 facebook / astryx - An open source design system that's fully customizable and a
GitHub热门项目 | An open source design system that's fully customizable and agent ready | Stars: 1,084 | 394 stars today | 语言: TypeScript
🔥 firecrawl / open-lovable - 🔥 Clone and recreate any website as a modern React app in se
GitHub热门项目 | 🔥 Clone and recreate any website as a modern React app in seconds | Stars: 27,191 | 159 stars today | 语言: TypeScript
🔥 drawdb-io / drawdb - Free, simple, and intuitive online database diagram editor a
GitHub热门项目 | Free, simple, and intuitive online database diagram editor and SQL generator. | Stars: 37,731 | 230 stars today | 语言: JavaScript
🔥 simple-icons / simple-icons - SVG icons for popular brands
GitHub热门项目 | SVG icons for popular brands | Stars: 25,297 | 7 stars today | 语言: JavaScript
🔥 Unclecheng-li / VulnClaw - 基于 AI Agent + MCP 工具链 + 渗透 Skill 编排, 配合大语言模型, 自然语言输入 → 自动完成「
GitHub热门项目 | 基于 AI Agent + MCP 工具链 + 渗透 Skill 编排, 配合大语言模型, 自然语言输入 → 自动完成「信息收集 → 漏洞发现 → 漏洞利用 → 报告生成」全流程。 | Stars: 1,000 | 105 stars today | 语言: Python
🔥 msitarzewski / agency-agents - A complete AI agency at your fingertips - From frontend wiza
GitHub热门项目 | A complete AI agency at your fingertips - From frontend wizards to Reddit community ninjas, from whimsy injectors to reality checkers. Each agent is a specialized expert with personality, processes, and proven deliverables. | Stars: 118,312 | 1,221 stars today | 语言: Shell
🔥 logto-io / logto - 🧑🚀 Authentication and authorization infrastructure for SaaS
GitHub热门项目 | 🧑🚀 Authentication and authorization infrastructure for SaaS and AI apps, built on OIDC and OAuth 2.1 with multi-tenancy, SSO, and RBAC. | Stars: 12,367 | 77 stars today | 语言: TypeScript
The LLM Should Never Do the Math
A CFO will not act on a number an LLM eyeballed. They will not act on a number the model "estimated" by reasoning over a usage dump. And they should not — because the moment a language model emits a dollar figure it computed itself, that figure is a guess wearing the costume of a fact. This is the design constraint behind databricks-cost-leak-hunter , the pilot skill of the databricks-pack v2 rebuild shipped in the claude-code-plugins marketplace ( PR #906 ). Given a live, authenticated Databricks workspace, it surfaces real cost leaks across four named categories, ranks them by monthly dollar impact, and emits a report a finance reader can act on. The marketplace validator graded it B (88/100, zero errors). The SKILL.md is 329 lines. The single most important thing in it is a rule the model is structurally prevented from breaking: the LLM never does the dollar arithmetic. Why not just let the agent read the bill and summarize it? Because that is exactly how you ship a confidently wrong cost report. Hand a model a few thousand rows of system.billing.usage and ask it for the top cost leaks, and it will give you a fluent answer. It will add DBUs. It will multiply by a price it half-remembers. It will round. Every one of those steps is a place the model can be plausibly, invisibly wrong — and the output reads identically whether the math is right or hallucinated. The failure mode of an LLM doing FinOps is not a crash. It is a clean, well-formatted, wrong number. The fix is architectural, not prompt-engineering. The model is allowed to decide what to look for and how to explain it . It is never allowed to be the calculator. The dollar primitive: confirmed, never estimated Every confirmed figure comes from the customer's own billing tables — system.billing.usage joined to system.billing.list_prices . Not a model estimate. Not a public price list. The number Databricks actually billed. That join is defined once, as a priced CTE, and reused by every category query. Usage i