TrendPulse

Every API has some form of authentication. But having authentication and getting it right are two completely different things. I've reviewed production systems where JWTs had no expiry. Systems where

Most security articles read like threat reports. They describe vulnerabilities from the outside looking in: what an attacker does, what the impact is, and how many systems are affected globally. That'

Sending an email doesn't always mean it will reach the recipient's inbox. Sometimes, an email is sent successfully by an application but ends up in the spam folder instead. This can be a real problem

Observability isn't a new problem, and NestJS is certainly not the first ecosystem to tackle it. But NestJS Observe is interesting because it asks a more specific question: what happens when observabi

You've likely seen this movie before: something breaks in an app you built with an AI coding agent. You ask the agent to fix it. It "fixes" it. But the bug is still there, or a second bug appears. So

Most JNI crashes don't come from complicated logic. They come from a small set of mistakes around object references: holding on to a reference after it has become invalid, creating references faster t

In my previous article, I argued that software automation needs a layer between operational intent and execution. The reason is simple: the specification should describe what success means, and the ex

Four times a year, every sole trader and landlord in Making Tax Digital (MTD) for Income Tax has to send HMRC a summary of their income and expenses. The first deadline of the 2026-27 tax year, 7 Augu

Tools like Lovable, Bolt, and v0 feel a bit like magic the first time you use them. Honestly, I was shocked the first time I saw something like that...and you get to do all that from a chat window! It

Every website gets feedback, and most of it ends up somewhere awkward. A visitor finds a broken button and emails you. Someone else leaves a comment on social media about a page that won't load on the

We just published a comprehensive, free Kotlin course on the freeCodeCamp.org YouTube channel. Whether you're targeting Android development, scalable backend services, or cross-platform applications,

Charts look like a small task on a ticket. Then you open the Recharts docs and remember how much setup every chart needs: a config object for labels and colors, axes, a tooltip, a legend, colors that

A wake lock is one of the simplest APIs in Android and one of the easiest to misuse. Acquiring one takes a single line of code. Forgetting to release it can keep a phone's CPU awake for hours, drain t

Building a production-ready mobile application used to require a dedicated team of frontend, backend, and DevOps engineers. With modern AI tools, an individual developer can take an idea from concept

What happens when a page has 150 content-heavy cards, but the user can only see the first few? You might expect the browser to only worry about what's currently visible. But this isn't exactly what ha

Smartwatches have made health data easier to access. A quick glance at your wrist can reveal your heart rate, step count, sleep duration and even estimated recovery. But displaying all this informatio

Building AI for clinical settings is harder than it looks. It takes more than picking a good model or tuning the right parameters. When engineers enter a hospital ecosystem, they quickly discover that

Node.js is a runtime environment for executing JavaScript outside the web browser. From small scripts to large-scale back-end applications, Node.js provides the APIs and tools you need to build JavaSc

Modern codebases are becoming increasingly difficult to navigate. This isn't necessarily because developers are writing more code themselves. It's mostly because coding assistants are generating hundr

You update a Deployment, run kubectl rollout status, and wait. The command times out. But when you send a request to the Service, it still answers. So did the update finish? And if it didn't, which Po

It's Thursday, around quarter past two. Your team shipped an internal assistant two weeks ago. The demo went well enough that someone in finance asked whether it could read contracts. Word spread. Tod

Whether you're writing an essay, a tweet, or a blog post, keeping track of your word and character count is very important. In this tutorial, you'll build a fully functional, real-time Word Counter to

Sooner or later, most front-end developers hit the same request: "Can this take up the whole screen?" A slide deck, a video player, kiosk dashboard, game, drawing canvas, or timer on a classroom proje

Large language models can answer questions, summarise documents, write code, and interact with external systems. But building a reliable AI application requires more than sending a prompt and displayi

We just published a comprehensive, hands-on video course on the freeCodeCamp.org YouTube channel that will teach you how to build an automated, end-to-end algorithmic trading system from scratch using

Software automation is good at turning instructions into actions. A pipeline can deploy a release, Terraform can provision infrastructure, a runbook can restart a service, or an agent can inspect tele

Modern models generate syntactically correct code nearly 100% of the time. Veracode's 2026 report puts it plainly: "Syntax is effectively solved." That reads like a milestone, but it's the reason you

When we post an engineering job, we get 300 to 400 résumés in a week. Reading each one carefully takes about two minutes. That adds up to eleven hours of work for just one opening, before any intervie

A lot of developers assume that once they're on an ORM, SQL injection stops being their problem. But it doesn't disappear. It just relocates. ORMs like Sequelize, Prisma, TypeORM, and Knex parameteriz

Until recently, building a technical writing portfolio could be as simple as creating a website, adding a list of articles, describing your writing experience, and linking to your social profiles. Tha