Morning.dev

DEV Community • 2026-04-18 17:45

Como parei de fazer deploy pra mudar permissão de usuário

Fala galera. Essa semana eu tava batendo cabeça com a modelagem do banco de um SaaS novo que tô estruturando em Go e Postgres. Até então, meu controle de acesso sempre foi aquele feijão com arroz: a gente joga uma coluna role na tabela de usuários, bota um "admin" ou "user" lá e resolve tudo no código com um if user.role == "admin". Funciona que é uma beleza pra MVP. Mas o escopo do projeto come...

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Lobsters • 2026-04-18 17:34

Hello old new “Projects” directory

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Hacker News • 2026-04-18 17:28

Show HN: DOMPrompter – click a DOM element, get a structured AI coding prompt

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DEV Community • 2026-04-18 17:23

Do AI Agent Costs Grow Exponentially? I Ran My Logs and the Answer Surprised Me

Do AI Agent Costs Grow Exponentially? I Ran My Logs and the Answer Surprised Me A Hacker News thread hit 208 points this week asking whether AI agent costs grow exponentially with complexity. The discussion is mostly theoretical — mathematical models, algorithmic complexity analysis, extrapolations. Interesting stuff. But I have something better: months of real logs from agents I've bee...

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DEV Community • 2026-04-18 17:22

I Measured How Much Each Agent Design Decision Costs in Tokens (The Numbers Make Me Uncomfortable)

I spent six months building agents convinced that the biggest cost was the model itself. I focused on picking the right model, optimizing how many times I called it, caching responses. All of that matters. But I was missing half the problem. The real spend was in decisions I made before the first inference. The prompt architecture. How I structured tool calls. Whether I accumulated context or sum...

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DEV Community • 2026-04-18 17:22

Why I Built Yet Another AI Knowledge Tool (And How It's Different)

There's no shortage of knowledge management tools for AI coding agents. Graphify builds knowledge graphs. Claude-mem replays sessions. LLM Wiki compiles research wikis. Ars Contexta generates personal thinking systems from interviews. I tried them. They're good tools. But none of them solved my specific problem. The Problem I use Claude Code daily on production apps. The pain isn't "C...

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DEV Community • 2026-04-18 17:22

Claude Design and What It Reveals About How Anthropic Thinks (or Doesn't Think) About Developers

There's a belief baked into the dev community that Anthropic is "the AI company that actually cares about developers." And I say this with full respect — I think that narrative is seriously incomplete. I'm not saying it's a lie. I'm saying it's a half-truth that hides a real tension between two versions of the same product: the Claude that shows up in press releases, and the Claude I use every da...

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DEV Community • 2026-04-18 17:21

m2cgen: export your ML model without shipping Python to production

This is part 3 of the Awesome Curated: The Tools series — where I do deep dives on tools that pass the filter of our automated curation system. If you landed here directly, you might want to start with post #1 on Docker for Novices or post #2 on Themis. Picture this: you spent weeks training a classification model. Random Forest, well-tuned, spotless metrics. Your data scientist is happy, the ...

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DEV Community • 2026-04-18 17:21

m2cgen: exportá tu modelo de ML sin llevar Python a producción

Esta es la parte 3 de la serie Awesome Curated: The Tools — donde hago deep dives en las herramientas que pasan el filtro de nuestro sistema de curación automático. Si llegaste directo acá, quizás te interese arrancar por el post #1 sobre Docker for Novices o el post #2 sobre Themis. Imaginate esto: pasaste semanas entrenando un modelo de clasificación. Random Forest, bien tuneado, métricas im...

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DEV Community • 2026-04-18 17:21

The Zero-Impact Build: Why Writing Less Code is the Best Earth Day Project

A submission for Weekend Challenge: Earth Day Edition Let me be perfectly clear right up front: I am not participating for any prize money or category. I am not building a massive AI tool or spinning up a blockchain node today. I am here purely as a participant to claim the completion badge and make a blunt point about how we build the web. Every tutorial pushes us to use heavier frameworks...

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DEV Community • 2026-04-18 17:21

Claude Opus 4.7 and the Beginning of the End of AI Abundance

I spent an entire month without a response from Anthropic after my API access went dark. Not a billing problem. Not a bug on my end. Just silence. Thirty days rerouting workflows, rewriting prompts for other models, explaining to my team why the system we'd built on top of Claude had stopped working overnight. I'm telling you this because today — with Opus 4.7 trending at the same time as an artic...

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Hacker News: Front Page • 2026-04-18 17:21

4-bit floating point FP4

Article URL: https://www.johndcook.com/blog/2026/04/17/fp4/ Comments URL: https://news.ycombinator.com/item?id=47817639 Points: 6 # Comments: 1

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DEV Community • 2026-04-18 17:21

Claude Opus 4.7 y el principio del fin de la abundancia en IA

Pasé un mes entero sin respuesta de Anthropic cuando se cayó mi acceso a la API. No fue un problema de billing. No fue un bug de mi lado. Fue silencio. Treinta días redirigiendo flujos, reescribiendo prompts para otros modelos, explicándole a mi equipo por qué el sistema que habíamos construido sobre Claude dejó de funcionar de un día para el otro. Lo cuento porque hoy, con Opus 4.7 trendeando al ...

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DEV Community • 2026-04-18 17:20

Hey, I made a tool that encrypts files using your typing rhythm!!!!

I built this PoC to explore if we can use the way someone types (the timing between keypresses) as a key for encryption. It uses Python and AES-256 to lock/unlock files based on your unique typing cadence. It's still a work in progress, but I wanted to share it with the community to get some feedback on the security logic or the implementation. Check it out if you're interested! REPO: https://gi...

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DEV Community • 2026-04-18 17:20

Rust vs Go vs Zig for High-Performance Backend Services in 2026

Rust vs Go vs Zig: High-Performance Backend Services in 2026 Three languages compete for the performance-critical backend market. Each makes different trade-offs between safety, speed, and developer productivity. Performance Benchmarks Benchmark Rust Go Zig HTTP throughput (req/s) 892K 734K 812K JSON serialization 1.2M/s 890K/s 1.1M/s Memory per 10K conn 45MB 78MB...

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DEV Community • 2026-04-18 17:14

Fast API, F for Frankenstein

What is so special about Fast API? It is the level of freedom! free to choose the project structure, modular, layers, or even use-cases. free to use SQLModel, SQLAlchemy, SQLObject, Tortoise-ORM, or even Django ORM! free to use Pydantic, DataClasses, Marshmallow, or even Cerberus. free to use Alembic, Liquibase, or maybe Jetbase. free to use sync or async operations. What s...

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Hacker News: Front Page • 2026-04-18 17:12