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DEV Community • 2026-04-12 08:00

We Hit 99.1% on the LOCOMO Benchmark. Here's How.

We Hit 99.1% on the LOCOMO Benchmark. Here's How. Last week, we hit 99.1% accuracy on the LOCOMO benchmark. For context: Mem0: 26% Engram: 79.6% Muninn: 99.1% That's a 73-point gap over Mem0. A 20-point gap over Engram. The breakthrough wasn't a new model or complex architecture. It was removing a single assumption. What is the LOCOMO Benchmark? LOCOMO (Long-Cont...

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2m read
YOLO Evolution: Comparing YOLOv5, v11, v12, and v26 on the Cars Detection Dataset
DEV Community • 2026-04-12 07:56

YOLO Evolution: Comparing YOLOv5, v11, v12, and v26 on the Cars Detection Dataset

Fig 1. YOLOv12 performing real-time vehicle detection on the Cars Detection Dataset. 1. Introduction: The Need for Speed and Precision Object Detection task: Object Detection is a foundational challenge in Computer Vision that goes beyond simple image classification. While classification identifies what is in an image (e.g., "this is a car"), Object Detection simultaneously answers ...

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12m read
A Keyboard-Driven HTML Entity Lookup That Lets You Copy All Three Forms
DEV Community • 2026-04-12 07:54

A Keyboard-Driven HTML Entity Lookup That Lets You Copy All Three Forms

A Keyboard-Driven HTML Entity Lookup That Lets You Copy All Three Forms "Is it © or &copyright;?" "What's the decimal code point for ™?" I kept typing these from memory, getting them slightly wrong, and wasting time. So I built a 60-entity reference where you can search by name, character, description, or number, and a single click gives you the named / decimal / hex form....

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4m read
DEV Community • 2026-04-12 07:52

JSON vs JSONB in PostgreSQL: I tested 1M rows to find ou

Recently I tried to resolve a recurring question in our team: Is JSON or JSONB actually faster in PostgreSQL? I couldn’t find a clear answer that matched real-world usage, so I ran my own benchmark. Setup I loaded 1 million records with identical data into both JSON and JSONB columns and tested common operations. Hardware: Dell PowerEdge R450 2x Intel Xeon Silver 4310 (24/48 core...

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1m read
A Searchable HTTP Status Code Reference with 36 Codes, One-Line Descriptions, and Yes, 418
DEV Community • 2026-04-12 07:51

A Searchable HTTP Status Code Reference with 36 Codes, One-Line Descriptions, and Yes, 418

A Searchable HTTP Status Code Reference with 36 Codes, One-Line Descriptions, and Yes, 418 Is 401 or 403 the "not authenticated" one? Which RFC defines 418? What even is 226? I kept leaving my editor to look these up and decided to build a single-page reference I could actually keep open in a tab. Vanilla JS, 36 codes, one-line descriptions, search on code / name / keyword. Every dev...

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5m read
How to Test SSO Authentication with Cognito and OIDC Providers
DEV Community • 2026-04-12 07:51

How to Test SSO Authentication with Cognito and OIDC Providers

Prerequisites for all OIDC Providers This guide covers the admin setup for SSO authentication built with Django and AWS Cognito. The full reference implementation is available on GitHub: django-cognito-sso-demo. To ensure SSO works correctly in your application, you must complete the following steps: Add OIDC Provider to the Cognito user pool to External Providers, for this you need ...

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2m read
How to Configure AWS Cognito for SSO: A Step-by-Step Guide
DEV Community • 2026-04-12 07:51

How to Configure AWS Cognito for SSO: A Step-by-Step Guide

Creating App Client for Each Customer According to the multi-tenant application model, we need to create a separate Cognito App Client for each customer and attach their corresponding external OIDC providers. Step 1: Creating Application Client To create App Client navigate to Application - App client, click to Create App Client In the setup form, choose Traditional web a...

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3m read
Why 1100 / 1.1 = 999.9999… Is a Tax Calculator Bug, and Two Ways to Fix It
DEV Community • 2026-04-12 07:49

Why 1100 / 1.1 = 999.9999… Is a Tax Calculator Bug, and Two Ways to Fix It

Why 1100 / 1.1 = 999.9999… Is a Tax Calculator Bug, and Two Ways to Fix It Japan has a 10% consumption tax (8% for groceries and newspapers). Your naive JavaScript calculator goes 1100 / 1.1 → 999.9999999999999 → Math.floor → 999 and produces a tax receipt that's off by one yen, which is the kind of thing you cannot ship. I hit the same bug writing a tax calculator for Japanese prices,...

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5m read
DEV Community • 2026-04-12 07:48

DualClip - Update_2026.04.12.

Last week, I shared the first round of updates for DualClip, my open-source macOS clipboard manager. Since then, I’ve crossed off three major items from the roadmap—including the one I’m most excited about: you can finally download DualClip without needing to build it from source. Here is the breakdown of what’s new in v1.1.0. 🔒 Secure Input Field Detection This was at the top of my "...

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3m read
DEV Community • 2026-04-12 07:48

GitHub Actions Supabase で技術記事投稿を自動化した話 — 1日に21本をQiita/dev.toへ

GitHub Actions × Supabase で技術記事投稿を自動化した話 — 1日に21本をQiita/dev.toへ はじめに 個人開発アプリ「自分株式会社」の開発を続けながら、技術記事を書くのが後回しになっていました。 気づいたら docs/blog-drafts/ に未公開のドラフトが21本も溜まっていました。 この記事では、1コマンドでQiita/dev.toへ自動投稿するGitHub Actionsワークフローを実装して、21本を1セッションで一括公開した話をまとめます。 問題: ドラフトが溜まる一方 Flutter Web + Supabase の個人開発では機能追加のたびにブログのネタができます。しかし投稿作業が手間で、ドラフトは増えるが公開されない状態が続いていました: docs/b...

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3m read
DEV Community • 2026-04-12 07:46

Extract Audio from Video in n8n

Pull audio from video without touching a terminal You have video interviews to transcribe. Or podcast episodes recorded as video. Or a music library trapped in MP4 files. You need the audio track extracted. FFmpeg does this in one command. n8n can trigger that command automatically whenever a new video appears. No manual steps. No terminal. No server. The problem: n8n can't e...

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4m read
Israel's mass killing has forced Donald Trump to think about Lebanon
newest submissions : multi • 2026-04-12 07:43

Israel's mass killing has forced Donald Trump to think about Lebanon

submitted by /u/underwaterish to r/worldnews [link] [comments]

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1m read
Why Your Tech Stack Choice Matters Less Than Your Team's Expertise
DEV Community • 2026-04-12 07:41

Why Your Tech Stack Choice Matters Less Than Your Team's Expertise

Every few months, a new blog post makes the rounds arguing that Company X achieved a 40 percent performance improvement by switching from Framework Y to Framework Z. The comments fill up with developers debating whether the migration was worth it, what the team should have chosen in the first place, and which emerging technology will make both options obsolete by next year. Meanwhile, the teams th...

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6m read
Lobsters • 2026-04-12 07:40

The quest for the perfect 2D sprite pipeline

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1m read
5 Architecture Patterns Every Web Application Developer Should Understand
DEV Community • 2026-04-12 07:40

5 Architecture Patterns Every Web Application Developer Should Understand

Architecture patterns are not academic exercises. They are practical solutions to problems that every web application encounters at some point: how to organize code so multiple developers can work without stepping on each other, how to scale specific parts of the system without rewriting everything, and how to keep the application maintainable as features pile up over months and years. You do not...

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7m read
‘Everything is gone’: Israel destroys entire villages in Lebanon | Lebanon
newest submissions : multi • 2026-04-12 07:38

‘Everything is gone’: Israel destroys entire villages in Lebanon | Lebanon

submitted by /u/underwaterish to r/worldnews [link] [comments]

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1m read
DEV Community • 2026-04-12 07:37

How We Ran Two Portals on the Same Domain During a React Migration (Without Users Noticing)

Imagine going live with your rewritten app and within an hour support tickets start flooding in. You missed a critical feature, or worse — the new app can't handle production traffic and crashes under load. That thought kept me up. So we didn't do a big bang cutover. We kept both portals running at the same time - here's how Instead, I pushed for a canary-based rollout — keep both portals runnin...

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3m read
I didn't understand why first code is working and second one not?
Newest questions tagged javascript - Stack Overflow • 2026-04-12 07:36

I didn't understand why first code is working and second one not?

Because arrow function didn't need 'return' for single line and arr.reduce function pass the first argument to next call. So we didn't need to return first argurment and also didn't need create the multiline arrow function and write return. but without that the code it give false result The problem which I was trying to solve is Correct solution: Wrong Solution: But why this Solution not work r...

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1m read
Russians execute four Ukrainian POWs in Kharkiv Oblast
newest submissions : multi • 2026-04-12 07:35

Russians execute four Ukrainian POWs in Kharkiv Oblast

submitted by /u/Jay_CD to r/worldnews [link] [comments]

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1m read
Pakistan sends fighter jets to Saudi Arabia under mutual defence pact
newest submissions : multi • 2026-04-12 07:33

Pakistan sends fighter jets to Saudi Arabia under mutual defence pact

submitted by /u/Mana_Seeker to r/worldnews [link] [comments]

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1m read
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