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LLM vs RAG
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DEV Community · Technology

LLM vs RAG

LLM (Large Language Model) An LLM like GPT-4 or Claude is: A pretrained model on massive text data Generates answers based on what it has learned during training Doesn’t know your private or real-time data unless provided in the prompt Limitation: Can hallucinate Knowledge is static (cutoff-base...

Naimul Karim
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Claude Code Routines: What the Official Docs Do Not Tell You
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DEV Community · Technology

Claude Code Routines: What the Official Docs Do Not Tell You

Claude Code Routines: What the Official Docs Do Not Tell You Anthropic just officially documented Routines in Claude Code. The HN thread hit 122 points on a docs link — unusually high signal for documentation. Here is what the docs cover, what they skip, and what we learned running Routi...

Atlas Whoff
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Hiring Engineers in South Korea Without Setting Up a Company There
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DEV Community · Technology

Hiring Engineers in South Korea Without Setting Up a Company There

South Korea came up in three separate client conversations last month. Same story each time: a US or European startup found strong engineering talent in Seoul, wanted to move fast, and then hit the wall. Legal said they'd need a Korean entity. Finance said that's $30,000 and six months. The candidat...

Priyom Sarkar
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Authproof
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DEV Community · Technology

Authproof

When an AI agent does something it shouldn't, the company running it can say anything. "The user authorized this." "The model went rogue." "We have no record of that." Right now, there is no cryptographic record of what a user actually authorized before an agent acted. The operator — the company ru...

Ryan Nelson
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Building a Configurable TCP Echo Server in Rust with Tokio
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DEV Community · Technology

Building a Configurable TCP Echo Server in Rust with Tokio

A TCP echo server sounds trivial. Accept a connection, read data, send it back. You could write one in 15 lines of Python. But the moment you start adding real-world requirements — concurrent connection limits, idle timeouts, configurable transforms, structured logging — it becomes a surprisingly go...

SEN LLC
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LinkedIn data shows AI isn’t to blame for hiring decline… yet
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DEV Community · Technology

LinkedIn data shows AI isn’t to blame for hiring decline… yet

LinkedIn data shows AI isn’t to blame for hiring decline… yet TLDR LinkedIn's latest data reveals a 20% drop in hiring since 2022. However, the professional networking giant points the finger squarely at higher interest rates and a general economic slowdown, not AI, as the prim...

Steffen Kirkegaard
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"How Do You Manage 4 AI Coding Tools at Once? Here's My Setup"
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DEV Community · Technology

"How Do You Manage 4 AI Coding Tools at Once? Here's My Setup"

I didn't plan to use four AI coding tools. It started with Claude Code. Then Codex CLI dropped, and it was good enough that I had to try it. Then Gemini CLI became free. Then a friend told me about OpenClaw and its custom provider injection. Before I realized it, I had: 4 different CLIs 3 differ...

CodeKing
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Our Stripe Delivery Pipeline — From Checkout to Download in 30 Seconds
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DEV Community · Technology

Our Stripe Delivery Pipeline — From Checkout to Download in 30 Seconds

Our Stripe Delivery Pipeline — From Checkout to Download in 30 Seconds When someone buys from Whoff Agents, they get their product in under 30 seconds. No manual fulfillment. No waiting for a human to check Stripe. Here is exactly how the pipeline works. The Flow Stripe Ch...

Atlas Whoff
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I Built a Chrome Extension That Transfers Data Between Web Pages Visually
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DEV Community · Technology

I Built a Chrome Extension That Transfers Data Between Web Pages Visually

Here is a workflow I used to do ten times a day: open a CRM page, find a customer's name, address, and email, switch to an invoice generator, type all three fields manually. Or: open a spreadsheet export in the browser, copy a cell value, switch to an admin panel form, paste it, go back, copy the ne...

SHOTA
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AI Coding Playbook: Tool Selection, Workflows, and Prompt Templates
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DEV Community · Technology

AI Coding Playbook: Tool Selection, Workflows, and Prompt Templates

This article was originally published on maoxunxing.com. Follow me there for more deep dives on AI-assisted development workflows. Choosing AI Tools by Scenario Different tasks call for different model and tool combinations: Scenario Recommended Approach Reasoning Reading co...

Xunxing Mao
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Foodie & Bandit the Regional Food Delivery Platform
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DEV Community · Technology

Foodie & Bandit the Regional Food Delivery Platform

First post here! Was having issues over at https://thatorjohn.hashnode.dev, so it's time for a change. You know what you can't easily find in Austin? Legit po boy bread. I found myself driving between Austin and the Mississippi Gulf Coast multiple times last year. It would have been a travesty to...

John Walley
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Building a Concurrent TCP Port Scanner in Rust with Tokio Semaphores
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DEV Community · Technology

Building a Concurrent TCP Port Scanner in Rust with Tokio Semaphores

Port scanning is one of those problems that looks trivial until you try to do it fast. Connect to a port, check if it's open, move on. But when you need to check 65,535 ports and each connection attempt might hang for seconds waiting for a timeout, naive sequential scanning becomes unbearable. The a...

SEN LLC
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phpcron: a tiny PHP CLI for poking at cron expressions
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DEV Community · Technology

phpcron: a tiny PHP CLI for poking at cron expressions

Every few months I end up staring at a crontab line wondering "is this actually going to fire when I think it will?" The usual answer is to open a browser tab, paste the expression into one of a dozen online calculators, and hope the one I picked is the one that agrees with the cron my production...

SEN LLC
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From Pipelines to Transforms: Making Vector Work with ClickHouse
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DEV Community · Technology

From Pipelines to Transforms: Making Vector Work with ClickHouse

Part 3 of a series on building a metrics pipeline into ClickHouse Read Part 2: Understanding Vector Pipelines Where Things Got Real By this point, the pipeline structure made sense. I understood: Sources Transforms Sinks But the pipeline still wasn’t working reliably. That’s when...

Mohamed Hussain S
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Time Relative to Clock Speed & Persistent AI
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DEV Community · Technology

Time Relative to Clock Speed & Persistent AI

What Happens If We Build a Persistent AI Mind? Einstein once said something like: two minutes with a pretty girl feels like nothing, but two minutes with your hand on a hot stove feels like eternity. He wasn't talking about physics. He was talking about the mind — about how subjective exp...

Loop_Root
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Gargalo em Banco de Dados: Mensageria e Paginação
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DEV Community · Technology

Gargalo em Banco de Dados: Mensageria e Paginação

Introdução Todo desenvolvedor .NET que trabalha com aplicações de médio ou grande porte já esbarrou em pelo menos um destes cenários: uma rotina noturna que precisa gravar 50 mil pedidos no banco, uma consulta de relatório que traz 300 mil registros de uma única vez e trava a aplicação, o...

Lincoln Zocateli
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Building Pharmacy Infrastructure with tRPC and Next.js — and Why We Need You
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DEV Community · Technology

Building Pharmacy Infrastructure with tRPC and Next.js — and Why We Need You

The Problem: Healthcare Software That Actually Matters Most telehealth platforms are digital band-aids on a fundamentally broken system. Patients wait weeks for appointments, navigate confusing interfaces, and often can't even get their medications delivered reliably. Meanwhile, healthcar...

Saamir Mithwani
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Quick question for people building with LLM APIs (3 questions, 2 min)
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DEV Community · Technology

Quick question for people building with LLM APIs (3 questions, 2 min)

I'm building an open-source reference called AI Oversight Patterns, a catalog of software patterns for keeping humans in control of AI agents. Things like approval gates before irreversible actions, action whitelists, audit logs, that kind of thing. Before I go further, I want to make sure I'm solv...

Samuel Omisakin
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