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Delving into the Rabbit Hole of Agentic Coding: What Went Wrong, What Worked, and What I Should Have Done Differently
DEV Community • 2026-04-11 14:57

Delving into the Rabbit Hole of Agentic Coding: What Went Wrong, What Worked, and What I Should Have Done Differently

TL;DR: In this post, I go through my experience attempting to solve real problems with the help of AI agents and agentic software development 🤖. I walk through the steps I took 👣, the thought process and decisions I made along the way 🧠, from planning to development to testing 🧪. This is a story of my attempt to build two tools that solve day-to-day workflow issues, one that failed and one that su...

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18m read
DEV Community • 2026-04-11 14:55

30-Day Cloud & DevOps Challenge: Day 6 — Dockerizing My React Frontend

Yesterday, I packaged my backend into a Docker container. Today, I did the same for my React frontend. But there's a twist, frontend containers are DIFFERENT. No Node.js running. No npm start. Just pure, static files served by nginx. And I learned why nginx is the king of web servers. First: How Frontend Docker is Different Backend Container Frontend Container Runs Node.js ...

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6m read
DEV Community • 2026-04-11 14:55

I Built an AI That Psychoanalyzes Your Friend Group — Meet brother.skill

Every group chat has the same cast of characters. The guy who hypes everything. The one who roasts you with surgical precision. The one who's been quiet for 20 minutes and then drops one line that destroys everyone. And the meme lord who hasn't used actual words since 2019. I built an AI skill that distills these people. What is brother.skill? It's an AI agent skill that builds perso...

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3m read
55% of Construction Software Vendors Hide Their Pricing. I Know Because I Checked All 570.
DEV Community • 2026-04-11 14:54

55% of Construction Software Vendors Hide Their Pricing. I Know Because I Checked All 570.

I tried to buy construction software last year and gave up twice. Capterra kept showing me Salesforce. G2 kept showing me Monday.com. Both platforms treat "construction" as a filter tag stapled onto generic SaaS, and the results punish anyone looking for something a framing crew can actually open on a phone at 6am. So I built ConTechFinder. A directory that only lists construction software. No C...

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3m read
Engineering a Real-Time Stadium Management Dashboard in Under 1MB
DEV Community • 2026-04-11 14:52

Engineering a Real-Time Stadium Management Dashboard in Under 1MB

Introduction Have you ever been at a major sporting event, sitting through the first half, only to spend the entire 15-minute halftime waiting in line for the bathroom or a burger? This is the ubiquitous "Wait Time Dilemma" in the Physical Event Experience. At peak capacity, attendees naturally swarm to the closest facility, unaware that an identical facility just one sector over is completely e...

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2m read
DEV Community • 2026-04-11 14:51

Building Igris: Crafting My Personal AI Agent & Knowledge Codex

As developers, we leave digital footprints everywhere—through our code, our portfolios, and our articles. But what if people could just talk to a digital version of us? That question led me to build Igris, a personal AI shadow agent and knowledge codex designed to answer questions about me, complete with my own personality. You can try out the live chat interface here: Agent Igris, and check out ...

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2m read
DEV Community • 2026-04-11 14:50

I build a Web Component UI Kit.

I didn't wake up one day and decide to build a UI kit. Like most things I've built, it started as a solution to a problem I had, for a project nobody asked for. I spin up a lot of side projects in my free time, the kind that will never see the light of day. Little things that keep me entertained and challenged, and honestly, keep me sharp on technology I'd otherwise only read about. About a yea...

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3m read
DEV Community • 2026-04-11 14:49

5 .cursorrules Patterns That Make Cursor Actually Reliable

5 .cursorrules Patterns That Make Cursor Actually Reliable If you're using Cursor (or VS Code with Cursor), you've probably experienced the frustration of inconsistent AI suggestions. You write a .cursorrules file, but the AI sometimes ignores it, interprets it wrong, or gives you code that violates your own conventions. The problem isn't Cursor. It's how the rules are written. After ...

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3m read
DEV Community • 2026-04-11 14:49

How I Set Up Stripe Checkout in 2 Hours Without a Backend

I needed to sell 9 digital products on a static site. No Next.js. No Express. No backend framework at all. Just HTML pages on Vercel and Stripe Checkout handling the payment UI. Here's the entire architecture: 3 serverless functions. That's it. The Problem I had 9 developer kits ($14–$59) ready to sell. I needed: A checkout flow that creates Stripe sessions Sale notifications via e...

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4m read
DEV Community • 2026-04-11 14:46

Understanding Internal Covariate Shift and Residual Connections: Beyond Activation Functions and Optimizers

"No man ever steps in the same river twice, for it's not the same river and he's not the same man" - Heraclitus When Going Deeper Made Things Worse In my last post, we built CNNs that could see. Filters learned edges. Pooling built spatial tolerance. Stack enough layers and the network recognizes digits, faces, objects. So the obvious next move: go deeper. More layers, more capacit...

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6m read
Independent convergence on specification-first AI code verification
DEV Community • 2026-04-11 14:42

Independent convergence on specification-first AI code verification

On March 26, 2026, Christo Zietsman published "The Specification as Quality Gate: Three Hypotheses on AI-Assisted Code Review" on arXiv. Paper: arXiv:2603.25773 The paper's core argument (direct quote from abstract): The combined argument implies an architecture: specifications first, deterministic verification pipeline second, AI review only for the structural and architectural residual. I ...

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3m read
DEV Community • 2026-04-11 14:40

Give Your OpenClaw Agent a Brain with Hjarni

OpenClaw is impressive out of the box. You message it, it acts. It runs on your machine, connects to your tools, and works while you sleep. But it starts from zero every time. Your notes are in Notion. Your decisions are in Obsidian. Your playbooks are in a Google Doc you haven't opened in three months. You keep re-explaining yourself. Hjarni is an AI-native knowledge base with a built-in MCP s...

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2m read
DEV Community • 2026-04-11 14:35

I Built a Free Browser Video Editor with WebGPU, WebCodecs & Optional AI Generation

Every time I needed to edit a quick video - trim an AI-generated clip, layer some music, export for social media - I had to open a desktop app. Or worse, upload everything to a cloud editor and wait. So I built KubeezCut - a professional video editor that runs entirely in your browser. No install, no uploads, no subscription. MIT licensed. What It Actually Does KubeezCut is a full mul...

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3m read
Hacker News: Front Page • 2026-04-11 14:32

The Future of Everything Is Lies, I Guess: Annoyances

Article URL: https://aphyr.com/posts/415-the-future-of-everything-is-lies-i-guess-annoyances Comments URL: https://news.ycombinator.com/item?id=47730981 Points: 19 # Comments: 1

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1m read
DEV Community • 2026-04-11 14:32

Is Axios Dead? I Built a Policy-First HTTP Client for TypeScript

Beyond Axios: From Imperative Requests to Declarative Transport Policies with pureq Most TypeScript teams still start with one default answer for HTTP: "just use Axios". That was a good answer for years. But today, the core challenge is no longer sending requests. It is designing transport behavior that stays reliable, observable, and maintainable as systems grow. That is a paradigm s...

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4m read
DEV Community • 2026-04-11 14:24

From Feeling to Firmware: Build Your First Haptic Feedback Device (10 Minutes)

From Feeling to Firmware: Build Your First Haptic Feedback Device (10 Minutes) Published on DEV.to Subtitle: Stop asking "what motor should I use" — start with "what sensation do I want someone to feel" The Real Problem Isn't Your Motor You have an idea for an interactive device that uses touch or vibration. You Google around. You land on Arduino forums. People ask you q...

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8m read
Conectando Tudo: Integração Flutter com Deep Links Nativos (Parte 4)
DEV Community • 2026-04-11 14:23

Conectando Tudo: Integração Flutter com Deep Links Nativos (Parte 4)

Se você já tentou integrar deep links no Flutter usando código nativo, provavelmente passou por isso: o Android recebe o link… o iOS também… mas o Flutter simplesmente não reage. Ou pior: funciona no cold start… mas não funciona com o app aberto. É exatamente esse problema que vamos resolver agora. Dando continuidade à série sobre Deep Links no Flutter, com novos artigos saindo semanalmente, ...

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7m read
DEV Community • 2026-04-11 14:23

Why Every Developer Should Understand Binary and ASCII (With Real Examples)

You've written thousands of lines of code. But have you ever stopped to think about what happens to a string like "Hello" at the lowest level of your computer? It doesn't stay as "Hello". It becomes this: 01001000 01100101 01101100 01101100 01101111 Understanding why — and how — is one of those foundational concepts that makes everything else in computing click. This post covers it prope...

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4m read
Writing Conway's Game of Life With Uint8Array and Canvas, Including a Gosper Glider Gun
DEV Community • 2026-04-11 14:22

Writing Conway's Game of Life With Uint8Array and Canvas, Including a Gosper Glider Gun

Writing Conway's Game of Life With Uint8Array and Canvas, Including a Gosper Glider Gun Conway's rules fit in three lines. Writing them and watching a glider chase itself across the grid — still a what have I just witnessed moment every single time. This version uses a typed array for the grid, canvas for rendering, and ships eight preset patterns so you can jump straight to the Gosper...

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5m read
DEV Community • 2026-04-11 14:22

How I Shipped 18 Landing Pages in 9 Hours (As a Solo Founder)

A few weeks ago I shipped 18 SEO landing pages in nine hours. Solo. No agency, no contractors, no copywriter. They went live, they pass Lighthouse, they're indexed, they're already pulling search impressions, and I didn't burn out doing it. This is not a "10x your output with AI" post. It's a tactical writeup of what actually worked, what broke, and what I would do differently. If you're a solo f...

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9m read
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