What an experience QCon AI New York was! Our miners Carlos Lopes and Talysson Oliveira spent two days learning from engineers who are building and scaling AI systems in production — beyond hype, focused on what actually works in real-world environments. #Codeminer42 #QCon #AI

As the year comes to an end, we just want to say thank you. 💎 Thank you to everyone who shared ideas, code, conversations, challenges, and learnings with us throughout the year. May this season be a time to slow down, recharge, and celebrate what really matters. Happy Holidays! ✨ #Codeminer42

Hey everyone, the final Dev Weekly of the year is out! Dive into Ruby 4.0, Context Engineering, and more exciting tech reads. We'll see you next year.

Recently, a critical vulnerability affecting React-based applications was disclosed. React is widely used across the industry. Many well-known companies — and likely many teams reading this — have at least one project built with it. #Codeminer42 #React #Security

New post in our blog! Explore what's new in Ruby 4, including Ruby::Box, Ractor improvements, and language enhancements in this holiday release overview. bit.ly/4p5sozg #Ruby #RubyUpgrade #Ruby4

Hi there! One more brownbag is coming! Join Gabriel Quaresma in her presentation "Powering Your Database Queries with LLMs and MCPs" at 12:30 BRT. Click on the link so you don't miss out!

New post in our blog! Learn how to run powerful LLMs on your own machine to turn natural language into SQL queries, no cloud, no cost, and full privacy.

Hello everyone, the latest Dev Weekly #91 is out! From React2Shell patches to CSS trends, TypeScript 7 speedups, your weekly tech digest awaits. Dive in! #DevWeekly #TechNews #DevNews

New post in our blog! Learn how AI-driven data center demand is changing the RAM market and get practical tips for optimizing memory usage in your JavaScript applications. #RAM #JavaScript #CodeOptimization

Hi there! One more brownbag is coming! Join Beatriz Amante in her presentation "How my models work: Loading, optimization and execution" at 12:30 BRT. Click on the link so you don't miss out!

New post in our blog! 😎 Learn how OpenTelemetry provides an agnostic interface for application instrumentation, enabling better observability through unified traces, logs, and more! bit.ly/4pnM9Tr #Instrumentation #OpenTelemetry #Telemetry #Observability

We're heading to QCon AI New York next week! On December 16–17, our miners, Carlos Lopes and Talysson de Oliveira, will be representing Codeminer42 at one of the most relevant global events focused on practical, real-world AI engineering, organized by InfoQ. See you there! #Codeminer42 #QConAI

New post in our blog! 🤖 Explore why AI coding agents can pose major security risks and learn essential strategies to protect your data and systems from potential disasters. #Ai #AiAgents #Antigravity

Hello Devs, the latest Dev Weekly #90 is out! Bun joins Anthropic, React Server Components vulnerability exposed, bundle-busting tips, and more on npm threats! #DevWeekly #Anthropic #React

Hello there! Here is the brownbag calendar for this month. We're gonna have the following live transmissions on December (all will be available later on our youtube channel) Subscribe to Codeminer4TV and be sure to don't miss a thing! bit.ly/48Ih3zc

We loved being part of another edition dedicated to empowering women in tech — learning, mentoring, and building together. A huge thank you to the Rails Girls São Paulo organizers, tutors, and participants for creating such an energetic and welcoming environment. See you at the next one! 💎

New post in our blog! Discover how AI, embeddings, and LLMs can streamline matching candidates to projects by analyzing resumes and requirements for better talent allocation. #Ai #TalentMatching

Hi there! One more brownbag is coming! Join Macabeus in his presentation "Retro Game Decompilation Using AI" at 12:30 BRT. Click on the link so you don't miss out!

New post on our blog! 👨‍💻 Learn how to transform AI into your study partner or tutor! Tips on how to optimize your prompts to guide you on a learning path. bit.ly/489yFTY #Codeminer42 #LearningWithAi #TechRoadmap

We’re excited to support GambiConf 2025 — one of the most creative and unconventional tech events out there! 🔥🛠️ This weekend, brilliant minds will come together to explore unusual ideas, bold experiments, and projects that push the boundaries of what we expect from technology. #Codeminer42

Hello everyone, the latest Dev Weekly #89 is out! Stay updated on the latest in tech! Explore AI agent testing, npm malware, DevOps automation, Mixpanel security, new tools, frameworks, and more. bit.ly/48vYBd0 #TechNews #DevNews #DevWeekly

Hi there! One more brownbag is coming! Join João Malheiros in his presentation "AI (on Rails) 101 Episode II - Uncluttered AI-driven experiences in Rails" at 12:30 BRT Click on the link so you don't miss out! bit.ly/4iqzmgL #codeminer42 #brownbag #ai

New post in our blog! Empowering young entrepreneurs and developers with immersive tech programs: Founders Lab and Imersão42. Experience hands-on learning and mentorship! #Tech #Community

New post in our blog! 🗺️ 📍 Learn what GeoTIFFs are and how to render them interactively using Leaflet for powerful web-based map visualizations. #GeoTIFFs

New post in our blog! Discover how the Model Context Protocol (MCP) is revolutionizing AI integration by standardizing connections between agents and external services.

We've officially wrapped the first edition of Imersão42! Three weeks ago, participants went through a journey of web development fundamentals - from frontend to backend, their practices and techniques - all through daily, hands-on videos.

Hello everyone, the latest Dev Weekly is out! Cloudflare outage post-mortem, Gemini 3 launch, new Android trojan, Rails 8.1 goodies, IBM Granite 4, and more! 🚀 bit.ly/4ibOrCu #Codeminer42 #DevWeekly

New post on our blog! Explore how prompt engineering unlocks the power of large language models, why it works, practical experiments, and tips for getting better AI results. bit.ly/3JF1fV8 #Codeminer42 #PromptEngineering #AI #LLMs

New post on our blog! 🛜 Discover the untold story of Hedy Lamarr, a Hollywood icon and inventor whose frequency-hopping breakthrough powers modern wireless technology today! bit.ly/4oFka0R #Codeminer42 #WomenInTech #HedyLamarr

We believe technology can — and should — be a tool for positive change. 💎 Through our Pro Bono Program, we partnered with Instituto Novo Ser to support Praia Para Todos — a project that’s transforming accessibility and inclusion. Check out how this collaboration turned into real results.

The 87th edition of our Dev Weekly is out! Ruby 4.0 drops with fluent ops & JIT boosts; Rails perf hacks, Hanami 2.3 routing, TypeScript flags & Node 25.2! Check it out below

New post on our blog! 🎨 Can developers design? Learn 5 UI fundamentals: color, typography, hierarchy, contrast, and alignment to create better user experiences as a developer. bit.ly/4oM2y3M #Codeminer42 #UI #design #frontEnd

Hi there! One more brownbag is coming! Join Edy Silva in his presentation "How to Set Up OpenCode with Ollama Cloud" at 12:30 BRT Click on the link so you don't miss out! bit.ly/441YjZB #codeminer42 #brownbag #ai

New post on our blog! ❌ 💰 Discover OpenCode, a flexible open-source coding assistant that works with local or cloud AI models like Ollama, an affordable alternative to Claude Code! bit.ly/3LrjHBl #Codeminer42 #AI #AIAgents #Ollama #OpenCode #Claude #ClaudeCode

The second part of #Imersão42 is already in progress! The week started with presentations about code design on the backend and data-fetching and error handling on the frontend, and we have much more until the end of the week.

New post in our blog! 🧑‍💻 Discover the difference between terminals and a terminal emulator, and explore why Alacritty, Kitty, and Ghostty are top choices for modern developers. bit.ly/4qWQKO2 #Terminal #TerminalEmulator #Alacritty #Kitty #Ghostty

We’re thrilled to welcome Mateus Guedes to Codeminer42! 💎 With strong experience in React, TypeScript, and Ruby on Rails, Mateus joins us, bringing valuable expertise to strengthen our capabilities even further. Welcome aboard, Mateus! 🚀 #Codeminer42

Week 1 of #Imersão42 complete! In these first five days, we covered both frontend and backend that set the stage for everything that comes next. #Imersão42 #webdevelopment #frontend #backend #fullstack

New post on our blog! 👨‍💻 Learn how React Native evolved its architecture from the Bridge to Fabric, making communication between JavaScript and Native faster and more efficient. bit.ly/3WhymkO #ReactNative #React #MobileDevelopment

Hi there! One more brownbag is coming! Join João Malheiros in his presentation "AI (on Rails) 101 Episode I - General Concepts " at 12:30 BRT Click on the link so you don't miss out! bit.ly/4p0ck2l #codeminer42 #brownbag #ai

New post on our blog! 🌐 Dive into tactical DDD with practical examples on entities, value objects, aggregates, and repositories, inspired by real-world expert conversations. bit.ly/4qhLmoj #DDD #domainModeling #softwareArchitecture

We’re excited to welcome Ciro Perez to Codeminer42 as our newest DevOps Engineer! ⚙️🚀 Ciro joins us to strengthen our infrastructure and automation expertise — supporting our teams in building even more scalable, reliable, and high-performance environments for our clients. Welcome aboard, Ciro! 💎

New post on our blog! Learn how to ensure runtime data safety in TypeScript using Zod for robust schema validation, advanced use cases, and improved error handling. bit.ly/4o2dslk #Codeminer42 #TypeScript

It’s time to start your journey! 🚀 Imersão42 officially kicks off today, two weeks of learning how real software is built, from frontend to backend. The first video is live on our YouTube channel, and it’s just the beginning. Watch it here: bit.ly/3JqYJlq

Are you ready to take your first step into software development? #Imersão42 starts next week! Imersão42 is an online 2-week experience created for people starting in tech or looking to switch careers + 1 extra week that ends with an exclusive mentorship session with our engineers!

New post on our blog 🤖 Explore the differences between AI agents and dev tools, key survey stats, practical use cases, costs, and tips for effective implementation in projects! bit.ly/47exGTk #Codeminer42 #AI #Agents

New post on our blog! ⌨️ 👷‍♂️ Level up your dev workflow! Part two of "A Noob's Neovim Journey" series. Follow this hands-on guide to building a fully customized Neovim setup. bit.ly/4nk5Tpy #Neovim #BeginnersGuide

Hi there! One more brownbag is coming! Join Douglas Marques in his presentation "Do not expose your users by talking too much" at 12:30 BRT Click on the link so you don't miss out! bit.ly/49paVgT #codeminer42 #brownbag #security

Last day to apply for Codeminer42 Founders Lab! If you've got an idea and want to understand what it takes to build a real product, this is your moment.

From scaling teams at Aero to now building AI-powered products at Moxi-Kaizen, we’re grateful for the continued trust and collaboration with Aaron Dence and his teams. Stories like this highlight what we believe in: true partnerships go beyond code! #Codeminer42