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DEV Community • 2026-04-28 12:20

Indie Dev Landing Page Optimization: 6 Changes That Tripled My CVR

Indie Dev Landing Page Optimization: 6 Changes That Tripled My CVR My landing page CVR went from 1.2% to 3.8%. No designer, no agency. Here's what I changed. Why LP Optimization Matters With zero ad spend, CVR is your only lever. 1,000 visitors × 1% CVR = 10 signups 1,000 visitors × 4% CVR = 40 signups A 4x difference — achievable without spending a cent. ...

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3m read
DEV Community • 2026-04-28 12:20

Hudson River Trading OA Experience: Two Trading-Style Coding Questions Breakdown

I recently completed the online assessment for Hudson River Trading (HRT), and my biggest takeaway was this: the questions themselves were not impossible, but the time pressure was very real. A lot of people assume HRT OAs are purely math-heavy or probability-focused, but my assessment was much more centered around coding implementation, algorithm efficiency, and handling edge cases under pressur...

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3m read
DEV Community • 2026-04-28 12:20

Supabase Edge Functions with Deno: Production-Ready Design Patterns

Supabase Edge Functions with Deno: Production-Ready Design Patterns Supabase Edge Functions run on Deno. Similar to Node.js, but with subtle differences. Here are the patterns I use running 45+ Edge Functions in production. Basic Structure // supabase/functions/my-function/index.ts import { serve } from "https://deno.land/std@0.208.0/http/server.ts"; import { createClient...

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3m read
DEV Community • 2026-04-28 12:19

Flutter Testing Guide: Unit, Widget, and Integration — When to Use Each

Flutter Testing Guide: Unit, Widget, and Integration — When to Use Each Flutter gives you three test types. Knowing which to reach for—and when—is what makes testing feel useful rather than burdensome. Here's what I actually use in production. The Three Layers Unit Test: verify logic in isolation (milliseconds) Widget Test: verify UI behavior without a device ...

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3m read
Newly Deciphered Sabotage Malware May Have Targeted Iran’s Nuclear Program - and Predates Stuxnet
newest submissions : multi • 2026-04-28 12:19

Newly Deciphered Sabotage Malware May Have Targeted Iran’s Nuclear Program - and Predates Stuxnet

submitted by /u/rkhunter_ to r/technology [link] [comments]

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1m read
Hacker News: Front Page • 2026-04-28 12:16

Xiaomi releases MiMo-v2.5 Family weights with strong coding and agent benchmarks

Article URL: https://firethering.com/mimo-v2-5-pro-xiaomi-coding-model/ Comments URL: https://news.ycombinator.com/item?id=47933443 Points: 4 # Comments: 1

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DEV Community • 2026-04-28 12:15

Who is actually responsible for Web Accessibility?

Who is responsible for making sure software is accessible? If your short answer is the front-end development team, I'm sorry to say that your software will never be universally accessible, because many accessibility decisions are made long before a developer begins working on a component. Architecture, design, and, yes, requirements all play a part in ensuring that whatever software is developed i...

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9m read
Newest questions tagged javascript - Stack Overflow • 2026-04-28 12:13

Compare JSON Object with random List in Object

Is there an easy and general way to compare two Objects with lists in it? I have two Objects, both are the same type, the first one is the old one and the second one has maybe updates, now I want to know if there are changes. The Object look something like this: { id: "A524", name: "test", data: [ { id: 0, name: "test1", data: [1,2,3] }, { ...

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1m read
newest submissions : multi • 2026-04-28 12:13

Lawsuits accuse State Farm of secretly working to cut insurance payouts

submitted by /u/PuddinTamename to r/news [link] [comments]

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1m read
newest submissions : multi • 2026-04-28 12:13

Israel’s direction poses ‘existential threat’ to Judaism, UK’s leading progressive rabbis warn

submitted by /u/WombatusMighty to r/news [link] [comments]

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1m read
You Want To Learn SQL? Here Is What I know So far...
DEV Community • 2026-04-28 12:12

You Want To Learn SQL? Here Is What I know So far...

SQL: What is it? First of all, it stands for Structured Query language. It is one of the programming languages used to communicate with relational databases. It's used to store, extract and manipulate data in a database. There are different SQL command categorizaions used to facilate the different uses of SQL. These are: 1. DDL (Data Definition Language) 2. DML (Data Manipulation...

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4m read
DEV Community • 2026-04-28 12:12

Top 10 Open Source Projects for Beginners to Contribute To

Top 10 Open Source Projects for Beginners to Contribute To Getting into open source can feel like showing up to a party where everyone already knows each other. You want to help, but where do you even start? The truth is, contributing early builds real skills — Git workflows, code review etiquette, reading unfamiliar codebases — that you just can’t get from tutorials. And the good news?...

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3m read
Vue.js - The progressive Javascript framework • 2026-04-28 12:12

Light weight local agent for Vue?

I have a m3pro macbook pro with 18gb ram (also have a base m1 studio I could use to remote into if 18gb wont cut it). Anyone running an agent locally on their machine while developing? Is it useful or are we still not there yet? Any insights and recommendations are welcome. I am loosing my job in August and trying to get skills up with AI. Copilot cutting the plans really put a damper in my day/pl...

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1m read
newest submissions : multi • 2026-04-28 12:11

How do experienced devs view large multi-track tech fests (hackathons + pitches + robotics)?

Came across a tech fest in Bangalore around mid-May with a 24-hour hackathon, startup pitch competition with prizes, robotics events like Robo Soccer/Race, and multiple tracks like AI/ML, competitive programming, cybersecurity, etc. Open to students and working professionals. From a more experienced dev / industry perspective, I’m curious how these kinds of “everything in one place” events are gen...

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1m read
DEV Community • 2026-04-28 12:10

Why AI Is Breaking Your API Security Model (And Nobody on Your Team Notices)

Your API gateway is lying to you. While you’ve been perfecting your OAuth flow and rate-limiting on the front door, AI has been busy building back doors. Over the last year, our "official" API documentation has become a work of fiction. For every documented endpoint, there are now three more living in the shadows, scaffolded by AI, pushed in a hurry, and completely invisible to our security stac...

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4m read
Real Python • 2026-04-28 12:10

Quiz: Use Codex CLI to Enhance Your Python Projects

Test your understanding of how to install Codex CLI, use Plan mode, and refine features with natural language in your terminal.

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Real Python • 2026-04-28 12:10

Quiz: Testing Your Code With Python's unittest

Test your understanding of Python unittest basics, including TestCase, assertions, fixtures, subtests, and test discovery.

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1m read
DEV Community • 2026-04-28 12:10

Every scanner checks what exists. Nobody checks what's missing

When cloud resources are deleted, the references to them persist — in IAM policies, event triggers, compute configs, and trust relationships. These orphaned references create exploitable gaps that no per-resource scanner can detect. The finding doesn't live on any single resource. It lives in the space between what's referenced and what exists. The assumption every scanner makes Cloud ...

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12m read
DEV Community • 2026-04-28 12:10

Our Attention Span Is Now Shorter Than a Goldfish's. So I Built a Chrome Extension

Every Site Blocker Uses a Static List. So I Built One That Doesn't. Every site blocker on the Chrome Web Store works the same way: you create a blocklist upfront, and it blocks those sites. I tried several — they all hit the same wall. So I built Dynamic Site Blocker, a session-based blocker that asks you "Block or Allow?" the first time you visit each site during a session. No pre-mad...

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4m read
We Fixed Karpathy’s LLM Wiki - PENgram Is the Typed Knowledge Graph Pipeline Everyone Asked For
DEV Community • 2026-04-28 12:10

We Fixed Karpathy’s LLM Wiki - PENgram Is the Typed Knowledge Graph Pipeline Everyone Asked For

We recently published an article about the gaps in Karpathy's LLM Wiki pattern. The thesis was simple: wikilinks without relationship types are just lines on a graph. You can see that two notes connect but not how. Does one support the other? Contradict it? Supersede it? That semantic layer is what turns a pile of linked notes into a knowledge graph. The comments pushed us further. People running...

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6m read
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