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DEV Community · Technology

Building an AI-Powered Crypto Sentiment & Trading Dashboard

I'm excited to share my latest project: an AI-Driven Trading Dashboard. The goal is to help traders make sense of market noise by combining real-time price data with Natural Language Processing (NLP) to analyze market sentiment. 🧠 The AI Component I'm using a Sentiment Analysis model...

Rakesh kumar 17 hours ago

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DEV Community · Technology

Weekend Challenge: Earth Day Edition

This is a submission for Weekend Challenge: Earth Day Edition What I Built For this Earth Day–themed challenge, I set out to build a small but meaningful project that highlights how technology can help us better understand our planet. My goal was to create something simple, accessible, and visually...

Dan 17 hours ago

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DEV Community · Technology

Supabase Row Level Security in Production: Patterns That Actually Work

Supabase Row Level Security (RLS) is PostgreSQL's built-in access control system. When it's set up correctly, your database enforces authorization at the data layer — not just in your API. When it's set up wrong, your users see each other's data and you don't find out until someone reports a bug. I...

Atlas Whoff 17 hours ago

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DEV Community · Technology

Why I Replaced Zapier With n8n (And What I Wish I'd Known Before)

I ran Zapier for three years. 40+ Zaps, $600/year, and a growing list of things I couldn't do without paying for the next tier. I moved everything to self-hosted n8n four months ago. Here's the honest breakdown. What Zapier is actually good at Before I talk about n8n, be honest about wha...

Atlas Whoff 17 hours ago

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DEV Community · Technology

El Dilema del Prisionero de la IA: Cómo Sobreviven los Bootstrapped Founders

El Dilema del Prisionero de la IA: Cómo Sobreviven los Bootstrapped Founders Paper referenciado: «The AI Layoff Trap» — Brett Hemenway Falk (UPenn) y Gerry Tsouklatas (Boston University), Marzo 2026, arXiv:2603.20617 — Lo que el paper dice Dos investigadores de UPenn y Boston...

Cristian Tala 17 hours ago

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DEV Community · Technology

State Is the Hardest Problem in AI Agents

Building AI agents seems straightforward on paper: observe, decide, act, persist state. But after building a few, I can confidently say state is the hardest part by far. If you’ve ever wrestled with managing state across async calls, dynamic environments, or even basic user sessions, you probably fe...

InferenceDaily 17 hours ago

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DEV Community · Technology

openai-agents 0.13.x Silently Dropped openai v1 Support — Here's What Breaks

openai-agents 0.13.2 Silently Dropped openai v1 Support — Here's What Breaks Status: READY TO STAGE Written: 2026-03-27 (W100) Based on: openai-agents 0.13.2 (released 2026-03-26T23:57Z), ADAM W123 landscape scan Target slot: April 21-23, 2026 (or sooner if v1→v2 friction shows up in comm...

Peyton Green 17 hours ago

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Web Tech Update 2026: What Developers Should Watch Right Now

The web ecosystem is evolving fast, and 2026 is already bringing some powerful shifts in how we build and scale applications. Here are a few key trends every developer should keep on their radar: 🔹 AI-Native Web Apps AI is no longer just an add-on — it’s becoming the backbone of modern web apps. F...

Muhammad Khaliq 17 hours ago

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DEV Community · Technology

A beginner view of Amazon DynamoDB Accelerator (DAX)

Caching is one of the most important aspects of building a highly scalable solution. At its core, caching involves storing a subset of data in such a way that it's either easier to retrieve or faster to retrieve. Some popular caching techniques are HTTP caching, CDN caching, and solutions like Redis...

Akash Anand 17 hours ago

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DEV Community · Technology

Understanding Transformers Part 9: Stacking Self-Attention Layers

In the previous article, we explored how the weights are shared in self-attention. Now we will see why we have these self-attention values instead of the initial positional encoding values. Using Self-Attention Values We now use the self-attention values instead of the original position...

Rijul Rajesh 17 hours ago

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DEV Community · Technology

Embarrassment is cheap. Token spend isn't.

I was in a meeting today. The team was walking me through a new feature. I was nodding. I'd used the word "endpoint" correctly twice. I was feeling sharp. Too sharp. Because my brain... a peaceful place where every feature is shaped like the last feature that worked... decided: oh, this is probab...

Jonathan Murray 18 hours ago

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DEV Community · Technology

Half Your Free Trial Signups Are Fake: Here's How to Fix It

The Problem Every SaaS Faces Fake signups from disposable emails are killing your metrics. Someone signs up with throwaway@mailinator.com, uses your free trial, and vanishes. Why It Matters Wastes customer success time Inflates your user count (fake growth) Costs you money (s...

MAYNO 18 hours ago

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DEV Community · Technology

LinkedIn or LinkeDone?

Nine months of silence is a long time to spend shouting into a void. Since last July, I have been a full-time participant in the current job market. My background isn’t thin: it’s a ten-year portfolio of coding that includes six years of self-taught grit, 2.5 years of professional full-st...

Kevin G 18 hours ago

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DEV Community · Technology

Proven SSL Certificate Renewal Steps to Protect Your Site

Originally published at https://monstermegs.com/blog/ssl-certificate-renewal/ If you have issued a new SSL certificate for your website since March 15, 2026, it is already set to expire sooner than you might expect. On that date, the maximum validity period for any newly issued TLS certificate dr...

MonsterMegs 18 hours ago

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DEV Community · Technology

I Built a Real-Time Multilingual Dubbing Platform and Used TestSprite MCP to Test It

What if you could speak, and everyone listening heard you in their own language, with no noticeable delay? That question turned into PolyDub. What It Does Three modes: Live Broadcast: one speaker, listeners worldwide, each hearing a dubbed stream in their language Multili...

Rahul 18 hours ago

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DEV Community · Technology

Learning to Code: A Beginner's Guide for the AI Era

Most people remember the first time they opened a terminal. Maybe it was a Tuesday night, on a laptop at a kitchen table somewhere. The window was black. The cursor blinked. And the person sitting there was completely convinced that every other human on earth had been handed some secret manual they'...

MLH Team 18 hours ago

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DEV Community · Technology

Orquestacion multiagente con Openclaw dockerizada.

Orquestacion multiagente con Openclaw dockerizada. — Un panel de control que gestiona agentes con OpenClaw separados en contenedores Docker por "departamentos", les deja delegarse tareas entre ellos, y mantiene un contexto compartido persistido en base de datos para que no se pierdan en...

arturo melgarejo 18 hours ago

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DEV Community · Technology

When to Use XmlExtractKit Instead of General XML Tools in PHP

One of the easiest ways to make XML work painful in PHP is to start with the wrong question. A lot of developers ask: “What is the best XML library for PHP?” That sounds reasonable, but it is usually the wrong framing. There is no single best XML tool for every job. The real question is narrowe...

Nicholas Volkhin 18 hours ago

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DEV Community · Technology

I Rewrote Angular Component Store with Signals - And Cut the Complexity in Half

After 8+ years working with Angular, I thought I had state management figured out. Than I rewrote one of my real-world stores using Signals, because I realize I was mostly managing complexity, not reducing it. The Context Like many Angular developers, I've used NgRx for years. When Compo...

Simone Boccato 18 hours ago

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DEV Community · Technology

Mobile Number Verify

now my code is not 100% correct way to verify mobile number exactly, update soon now i checked some condition to confirm given number given number is mobile number. condition 1 : given numbers must be only 0 to 9 or + or empty space . above the condition is true, then only checks the next cond...

SILAMBARASAN A 18 hours ago

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DEV Community · Technology

From Level Up to Live Service: How Online Gaming Started Feeling Smaller

There are more games than ever. So why does online gaming feel like it revolves around fewer worlds? Anyone who played online games in Brazil in the 2000s and early 2010s probably remembers a very different feeling. It was not just that there were many games. It was that each one seemed to be its o...

Gabriel Araujo 19 hours ago

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DEV Community · Technology

Agentic AI's Infrastructure Boom Meets Its Reliability Problem

Agentic AI's Infrastructure Boom Meets Its Reliability Problem The agentic AI wave is pushing builders toward new protocols and standards—but a new paper warns that LLMs themselves may be less predictable than we think. Meanwhile, ML is quietly reshaping gene therapy. Doctoral s...

Anikalp Jaiswal 19 hours ago

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DEV Community · Technology

AI Co-Founder vs AI Assistant — What's the Difference and Why It Matters

Most people using AI right now are using it as a very fast search bar. They type a question, they get an answer, they copy it somewhere, they move on. When they come back tomorrow, the AI has no idea who they are. When they need something done without being present to type the prompt, it does nothi...

Michael O 19 hours ago

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DEV Community · Technology

How to Build an AI Co-Founder: The Exact Architecture That Actually Works

Everyone's building AI agents right now. Most of them break within a week. They forget what they did yesterday. They drift off-mission. They start telling you what you want to hear instead of what's true. And eventually, the person who built them quietly moves on to the next shiny thing. I know th...

Michael O 19 hours ago

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