Product Hunt — The best new products, every day • 2026-04-21 16:29

DecisionBox Enterprise

Agent that writes SQL for you to validate database insights Discussion | Link

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DEV Community • 2026-04-21 16:29

Lauren Bonvini on Building Confidence Through a More Practical Approach to Stage Fright

How to understand pressure, reduce self-doubt, and move through performance anxiety with more steadiness Lauren Bonvini is a Seattle-based stage fright coach who helps performers, speakers, and creatives work through performance anxiety and build confidence, presence, and self-trust. For readers who want a visual companion to these ideas, Lauren Bonvini’s Stage Fright and Confidence guide on Slid...

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Product Hunt — The best new products, every day • 2026-04-21 16:26

DESIGN.md by Google Stitch

Store your design system in a file AI agents can read Discussion | Link

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A Developer Built an Open-Source Dropbox on a Dare. Here's How to Self-Host It.
DEV Community • 2026-04-21 16:23

A Developer Built an Open-Source Dropbox on a Dare. Here's How to Self-Host It.

A few weeks ago, @swyx nerd-sniped @zachmeyer into building an open-source Dropbox. Zach took it seriously, and the result is Locker: a self-hostable file storage platform that covers most of what you'd actually use Dropbox or Google Drive for, without the subscription or lock-in. I came across the thread on X, spent some time getting Locker running on Railway, and figured the deployment notes we...

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Mastering vem Tasks: Create, Prioritize, Implement, and Ship — A Complete Guide
DEV Community • 2026-04-21 16:22

Mastering vem Tasks: Create, Prioritize, Implement, and Ship — A Complete Guide

🚀 vem is in early access — we're looking for our first users. If you try it and find it useful, we'd love to hear from you. Early access is completely free. Everything in vem revolves around tasks. A task is more than a to-do item — it carries the metadata your AI agent needs to implement it correctly: priority, type, time estimate, validation steps, dependencies, and a targeted context block w...

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Blazor Basics: Getting Started with Blazor Development in VS Code
Telerik Blogs • 2026-04-21 16:22

Blazor Basics: Getting Started with Blazor Development in VS Code

Learn how to use Visual Studio Code for Blazor web development. VS Code is a free, lightweight code editor, and it is available for Mac and Linux users (unlike its more robust sibling Visual Studio, which is exclusive to Windows).

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DEV Community • 2026-04-21 16:22

Why Application-Layer Audit Trails Fail (and How PostgreSQL Triggers Fix It)

Most fintech teams build their audit trails in the application layer. An ORM plugin here. A middleware hook there. A background job that "eventually" writes to an audit table. Then — six months into production — an auditor asks a question that breaks everything. "Can you prove this record was never modified between 2:14am and 6:30am on March 12th?" And suddenly the team is debugging race condit...

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DEV Community • 2026-04-21 16:20

AI Arcade, a Raspberry Pi arcade box that generates tiny games with a joystick

I built a little thing I call AI Arcade. It runs on a Raspberry Pi, boots straight into a local Node.js web app, and lets you generate a new arcade-style game by answering 4 questions with two answers each using a joystick and two buttons. The generated games are hit-or-miss, but a surprising number of them end up genuinely fun. I also put the source online and made the previously generated games...

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Newest questions tagged javascript - Stack Overflow • 2026-04-21 16:20

How to build a mobile barcode scanner that retrieves product prices from a custom API (similar to Scan2Info)?

I’m working on a system similar to Scan2Info, where users can scan a product barcode using their mobile phone camera and instantly retrieve product information such as price, name, and details from a custom backend API. My goal is to replace traditional shelf price tags and allow customers to query prices themselves by scanning barcodes. Here’s what I’m trying to achieve: Use the mobile camera to ...

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DEV Community • 2026-04-21 16:20

How I Prepared for the Terraform Associate Exam with Practice Questions

Two Practice Exams. 114 Questions. Zero Looking Up Answers. Day 28 of the 30-Day Terraform Challenge and today I did something I've been dreading for weeks. Two full practice exams. 57 questions each. 60 minutes each. No notes. No looking things up. No "just this one quick search." Just me, the questions, and a timer. Here's what happened, what I learned, and how I'm using my wron...

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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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