DEV Community • 2026-04-21 16:18

What 23 AWS audits of Series A-C SaaS companies taught me about where the money actually leaks

I run cloud cost audits for Indian SaaS founders. Over the last three months I've done 23 of them, all Series A-C, monthly AWS spend ranging from Rs 2.5 lakh to Rs 38 lakh. Here's what the data actually says about where money leaks in a well-run engineering org. Median waste per account: $3,400/month. Not in the top 10 line items of Cost Explorer. In three places most teams don't check on a Tuesd...

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DEV Community • 2026-04-21 16:17

HOCKS AI: I Open-Sourced a Full AI Platform With Chat, Vision, Video Analysis & Website Generation — Runs at $0/Month

TL;DR: I built and open-sourced a production-ready AI platform that combines chat, image analysis, video analysis, and website generation. It uses free models where possible and costs ~$0/month to run. Live demo | GitHub Why I Built This Every AI tool I tried was either: Too expensive — GPT-4 API bills adding up fast Single-purpose — chat OR image analysis, never both Closed ...

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HackerNoon • 2026-04-21 16:17

Why “Just Pick AWS” Is Bad Advice in 2026

Cloud choice at the seed stage impacts cost, hiring, and architecture long-term. AWS, Azure, and GCP each fit different startup needs

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What Being at JCON Europe Teaches Me (Beyond the Talks)
DEV Community • 2026-04-21 16:17

What Being at JCON Europe Teaches Me (Beyond the Talks)

I’m writing this from JCON Europe 2026, in Cologne, Germany, right in the middle of one of those rare environments where everything revolves around building better software. You know that feeling when you step into a place and instantly realize: this is where things are happening? That’s exactly what a good tech conference feels like. But here’s the interesting part — the real value of being ...

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Angular Grid at Scale: How Kendo UI Handles Millions of Rows
Telerik Blogs • 2026-04-21 16:17

Angular Grid at Scale: How Kendo UI Handles Millions of Rows

Angular Grid at Scale: How Kendo UI Handles Millions of Rows.

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Hacker News • 2026-04-21 16:16

Show HN: Daemons – we pivoted from building agents to cleaning up after them

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I Fine-Tuned Gemma 4 for LaTeX OCR. The Success Was the Problem.
DEV Community • 2026-04-21 16:12

I Fine-Tuned Gemma 4 for LaTeX OCR. The Success Was the Problem.

A fine-tuning post-mortem, and three tests that showed me what my model actually learned. Today I fine-tuned Google's gemma-4-E2B-it on the unsloth/LaTeX_OCR dataset using LoRA on a RunPod RTX 3090. Nine hours of training, about $2 in GPU cost, and an adapter uploaded to Hugging Face. The training loss dropped from 13.66 to 0.018. On the test set, the outputs were near-perfect. Then I ran three...

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DEV Community • 2026-04-21 16:12

How I Prepared for the Terraform Associate Exam with Practice Questions

As part of my 30-Day Terraform Challenge, Day 28 was all about simulating the real exam environment using timed practice exams and using the results to strengthen weak areas before exam day. I completed two full 57-question Terraform Associate practice exams, each under a 60-minute time limit, with no reference materials allowed during the session. Practice Exam Results Practice Exa...

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Under the Hood: How Bandit SAST Analyzes Your Python Code
DEV Community • 2026-04-21 16:10

Under the Hood: How Bandit SAST Analyzes Your Python Code

Abstract While many developers use security scanners, few understand how they actually "read" code. This article explains the inner workings of Bandit, focusing on its use of the Abstract Syntax Tree (AST) to identify security patterns without ever executing a single line of code. 1. The Core Engine: AST (Abstract Syntax Tree) Unlike a simple text search (which might give many false positives), B...

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Product Hunt — The best new products, every day • 2026-04-21 16:08

Euphony

Render AI chat data and Codex logs into browsable views Discussion | Link

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Internal Developer Platforms Are Booming, But Adoption Is Failing
HackerNoon • 2026-04-21 16:07

Internal Developer Platforms Are Booming, But Adoption Is Failing

Most IDPs fail due to poor developer experience, lack of cost visibility, and misaligned workflows. Treating platforms as products drives adoption.

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Hacker News • 2026-04-21 16:04

Show HN: Four years of my CS degree, typeset in LaTeX (850 pages)

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DEV Community • 2026-04-21 16:04

Open Source Agents Are Being Weaponized. Nobody's Prepared.

Open Source Agents Are Being Weaponized. Nobody's Prepared. The security incidents at OpenClaw should have been a wake-up call. Instead, they're being treated as growing pains. Peter Steinberger revealed at AIE talks that the project saw 60x more security reports than curl, with at least 20% of skill contributions flagged as malicious. Think about that. One in five code submissions to an agent f...

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Building a Real Event Bus in VibeCodeArena
DEV Community • 2026-04-21 16:04

Building a Real Event Bus in VibeCodeArena

There’s a moment in every growing codebase where things start to feel… tangled. A button click updates three different parts of the UI. A network response triggers state changes across multiple modules. A login event suddenly needs to notify analytics, UI, cache, and permissions. At first, you wire things directly: loginButton.onclick = () => { updateUI(); trackAnalytics(); refreshDa...

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DEV Community • 2026-04-21 16:03

Visual Studio Weekly: The Debugger Agent Just Got Serious

Visual Studio 18.5 dropped on April 14, and buried in the release notes is one of the most significant debugging improvements I've seen in years: the Debugger Agent now validates bugs against live runtime behavior instead of guessing from static code. If you've ever spent an hour reproducing a vague bug report just to figure out where to set your first breakpoint, this update changes the game. ...

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DEV Community • 2026-04-21 16:03

I Repurposed a Coding Agent as a Life Assistant. Then My Twins Came 10 Weeks Early.

April 16, 5:47 AM My twins arrived at 30 weeks. Ten weeks early. About two pounds each. Within minutes they were intubated, lines placed, wheeled to the NICU. My wife was in recovery. My 4-year-old was at home with a babysitter who didn't know what was happening. I was standing in a hallway between two worlds, holding a phone that wouldn't stop buzzing. Morning briefing. Three calendar...

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From Bugs to Breakthroughs: My Journey Building Timelix
DEV Community • 2026-04-21 16:03

From Bugs to Breakthroughs: My Journey Building Timelix

Over the past two months, my teammates (Mbiydzenyuy Eileen Leila, Ciara Arlette Ologuie) and I have been building an appointment booking application we named Timelix. It’s been an intense but rewarding experience working with Laravel (PHP) and Vue.js. It hasn’t been easy. We’ve faced bugs that seemed impossible at first, moments of confusion, and times where progress felt slow. But through al...

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HackerNoon - programming • 2026-04-21 16:03

The HackerNoon Newsletter: How to Structure API Documentation (4/21/2026)

4/21/2026: Top 5 stories on the HackerNoon homepage!Read All

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DEV Community • 2026-04-21 16:03

Two Lines of HTML Give Any Travel Blog or Website a Live Carry-On Size Checker for 75 Airlines

A travel blogger emailed me a few weeks ago asking if she could embed our carry-on size checker directly into one of her posts. She was writing a packing guide for budget airlines and wanted her readers to check their specific bag against each airline without leaving the page. I told her no, because the tool was a full-page Astro component with site-wide styles, a navigation bar, and a footer. It ...

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Hacker News • 2026-04-21 16:03

Show HN: Verified Deep Learning with Lean 4

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