The free web developer community
Codú's community offers hundreds of tutorials, an online community, and answers questions on a wide range of web development topics. Sign up for a free account today and join the community.
Codú's community offers hundreds of tutorials, an online community, and answers questions on a wide range of web development topics. Sign up for a free account today and join the community.
Discover the benefits of using Tailwind CSS, a rising CSS framework with a utility-first approach, increased speed, customisability, and accessibility.
Forget stiff lines and wild polynomials. Discover why Splines are the "Goldilocks" of feature engineering, offering the perfect balance of flexibility and discipline for non-linear data using Scikit-Learn’s SplineTransformer. The post Mastering Non-Linear Data: A Guide to Scikit-Learn’s SplineTransf...

I really like nice pencils and pens and it's not a problem, I am totally in control? But I probably have too many now.

Exploring five critical questions shaping software engineering through 2026, with contrasting scenarios for each. These lenses help prepare for the evolving landscape of coding in an AI-driven world.

Niall Maher1 minA very warm welcome from Niall (the founder of Codú) and the very first post on codu.co.
My chores and tasks are piling up... and so are my emails.

Three things we learned running a two-stage SFT+GRPO safety fine-tuning pipeline on Ministral-3B (single H200, 7.5 hours, 8,344 prompts from 19 security datasets): Train only what you’re adding. SFT on malicious examples only. Don’t retrain benign behavior the base model already has. Result: 100% be...

Niall Maher2 minI've been asked in our community Discord for some writing tips, so I hope this list might help boost your skills and confidence.
The creation of an unflinching look at the survival period of "working" during the holidays.

We recently introduced discussions but there needed to be a major improvement... Notifications! Now you can see when you have a reply waiting for you.
This year, we're inviting all of you to contribute to our open-source projects and get exclusive rewards!
Write a CV as a career switcher
React makes it easy to build UIs, but building fast React apps is a different skill altogether. We just posted a hands-on, real-world React Performance Optimization course on the freeCodeCamp.org YouTube channel. You’ll learn how React actually re-re...

Niall Maher3 minIntroduction to React.js for beginners! This is the first article in a series to teach you React so that you can start with JavaScript's favorite library.
Gemini! I'm joining Google Cloud AI to focus on helping developers and businesses succeed with Gemini, Vertex AI, and the Agent Development Kit.

Lessons learned from 14 years of engineering at Google, focusing on what truly matters beyond just writing great code.

Secret's Out! 🤫 Introducing Codú:her. Have you ever felt the need for a community to chat with other women privately on Discord? Well, we've heard you!
Valentino Braga4 minBelieve in yourself and keep coding!
Every time we've made it easier to write software, we've ended up writing exponentially more of it. History suggests we won't do less work - we'll discover we've been massively under-investing in knowledge work because it was too expensive to do all the things that were actually worth doing.

AI coding assistants have quickly moved from novelty to necessity where up to 90% of software engineers use some kind of AI for coding. But a new paradigm is emerging in software development
