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DEV Community • 2026-07-31 06:16

Mastering Python Futures: From Basic Submissions to Event-Driven Concurrency

When building modern Python applications—whether scraping web pages, fetching data from external APIs, or querying databases—IO-bound operations often slow down execution. Python’s concurrent.futures module provides a high-level, elegant interface for running tasks asynchronously. In this guide, we'll break down what Futures are, why you need them, and how to use them effectively using a practic...

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6m read
DEV Community • 2026-07-31 06:15

Building Production AI Systems(Final)

Designing AI Systems That Outlive Today's Models If there's one lesson this series has taught me, it's this: Don't build your application around a model. Build it around a capability. That might sound like a small distinction. It isn't. Because models change. Constantly. A few months ago everyone was talking about GPT-4. Then Claude. Then Gemini. Then DeepSeek. Then Qwen. By ...

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4m read
DEV Community • 2026-07-31 06:14

I built a self-hosted alternative to Claude Code Channels -- here's why

When Claude Code Channels launched, I was stoked — Claude on my phone, finally. Then I hit the limitations: Only Telegram and Discord. I live in WhatsApp (most of the world does). Everything routes through Anthropic's servers. Fine for most people, but I work with clients who have strict data policies. Requires Pro subscription. I was already spending less via API keys for my usage pattern. No b...

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2m read
Amnesty: India sent 2,596 arms shipments to Israel during genocide in Gaza
newest submissions : multi • 2026-07-31 06:14

Amnesty: India sent 2,596 arms shipments to Israel during genocide in Gaza

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

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1m read
DEV Community • 2026-07-31 06:13

Introducing SequelizeDotNet: Bringing Sequelize.js's Database-First Philosophy to .NET

A database-first, explicit-DDL ORM for .NET — runtime-emitted entity types, JOIN-free eager loading, CDC push notifications, and schema-driven GraphQL/OpenAPI generation. If you've built anything with Sequelize.js in the Node.js world, you know the feeling: point it at a database, define (or reverse-engineer) a model, and you're querying with Model.findAll({ where: {...}, include: [...] }) within...

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4m read
DEV Community • 2026-07-31 06:12

How Telechat routes Claude queries to save 60% on API costs

Most Claude-powered applications use a single model for everything. A "what's 2+2?" gets the same Sonnet treatment as "review this 500-line PR for security vulnerabilities." That's like taking a taxi to the mailbox. Telechat's smart model router fixes this. It analyzes each incoming message and routes it to the cheapest Claude model that can handle it — without sacrificing quality on complex quer...

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3m read
newest submissions : multi • 2026-07-31 06:11

Image compression & conversion tool

Hey 👋 I built a small image compression & conversion tool and wanted to share it with you. https://www.img-reducer.com/ Key Features 🎯 Custom target file size support 🔐 100% client-side processing (your images never leave your device) 🖼️ Supports multiple image formats 📐 Resize up to 10 images at once 💾 Auto-save & resume 🌐 Works offline after initial load If you find any bugs or have sugg...

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1m read
DEV Community • 2026-07-31 06:10

Hello, DEV — I’m Joseph Sides, a Data Privacy Advocate and Consultant

The internet has created incredible opportunities, but it has also made it increasingly difficult for ordinary people to understand where their information goes. A person can visit a website, read an article, or look at a product without realizing how many companies may receive information about that activity. Advertising pixels, analytics tools, cookies, and other tracking technologies often ope...

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3m read
Hacker News: Front Page • 2026-07-31 06:08

DeepSeek-V4-Flash Update

Article URL: https://api-docs.deepseek.com/updates/ Comments URL: https://news.ycombinator.com/item?id=49119559 Points: 26 # Comments: 10

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1m read
DEV Community • 2026-07-31 06:08

Your Microservices Are Hiding a Second Codebase (And Istio Deletes It)

Split a monolith into 20 microservices and you don't just multiply deployables, you multiply every cross-cutting concern. TLS, retries, timeouts, trace propagation: suddenly each service carries hundreds of lines of networking code that has nothing to do with your business. That's a shadow codebase, and it's usually the least differentiated code you own. Nobody buys your product because your retr...

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1m read
Drones hit Wildberries distribution centre and oil refinery in Russia's Volgograd
newest submissions : multi • 2026-07-31 06:08

Drones hit Wildberries distribution centre and oil refinery in Russia's Volgograd

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

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1m read
DEV Community • 2026-07-31 06:07

Telechat vs Claude Code Channels: Which Claude-on-mobile setup is right for you?

If you want Claude AI on your phone, you now have two real options: Claude Code Channels (Anthropic's official integration) and Telechat (an open-source, self-hosted alternative). Both solve the same problem — getting Claude into your messaging apps — but they make fundamentally different architectural choices. This is an honest comparison. I built Telechat, so I'm biased, but I'll be upfront abo...

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3m read
DEV Community • 2026-07-31 06:07

Show HN: Telechat – Self-hosted Claude on Telegram/WhatsApp/Slack, no cloud relay

Hey HN, I built Telechat — a self-hosted Claude AI bot that runs on your machine and connects to Telegram, WhatsApp, Slack, and web chat simultaneously from a single process. Why I built this When Anthropic launched Claude Code Channels in March, I was excited — finally, Claude on my phone. But Channels only supports Telegram and Discord, routes everything through Anthropic's servers,...

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2m read
DEV Community • 2026-07-31 06:06

Performance optimization? Let's discuss useCallback: when to hire, when to skip!

We’ve all been there. You're building a sleek React application, things are humming along, and then suddenly, a flicker of lag. A component re renders more often than it should, or an interaction feels just a touch sluggish. In our endless pursuit of buttery smooth user experiences, discussions inevitably turn to performance optimization. Among the most talked about tools in the React developer’s ...

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9m read
DEV Community • 2026-07-31 06:05

The Modern Developer Playbook: Building, Shipping, and Scaling in Public

The Modern Developer Playbook: Building, Shipping, and Scaling in Public In software engineering, traditional credentials like degrees, resume buzzwords, and isolated side projects no longer guarantee a direct path into high-impact roles. The developer ecosystem has shifted heavily toward proof of execution: tangible evidence that you can build, deploy, optimize, and communicate real so...

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7m read
DEV Community • 2026-07-31 06:05

My Machine Learning Project Taught Me More About Software Engineering Than Machine Learning

When I started building my ad click prediction project, I thought the hard part would be training a machine learning model. I was wrong. Before I even got to preprocessing the data, I found myself dealing with project architecture, testing, imports, packaging, and debugging environment issues. Looking back, those lessons were probably more valuable than the model itself. Here's what happened. ...

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4m read
DEV Community • 2026-07-31 06:04

How to Remove EXIF and GPS Metadata Before Sharing a Photo

A photo can disclose more than its visible pixels. Depending on the device and editing workflow, a JPEG may contain: GPS location data. Capture and modification timestamps. Camera and lens identifiers. Editing software details. Copyright, author or comment fields. Color profiles and other application metadata. That information can be useful in a private archive. It may be unnecessary or risky ...

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4m read
DEV Community • 2026-07-31 06:04

React useThrottle Hook: Throttle Values & Callbacks (2026)

React useThrottle Hook: Throttle Values & Callbacks (2026) A scroll listener fires at whatever rate the compositor feels like — often 60 times a second, sometimes 120. mousemove is worse. Feed either straight into setState and every wiggle of the wheel re-renders your component tree at frame rate; feed it into an analytics call or a network request and you've built a tiny DDoS again...

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8m read
Wild Footage Shows Man Blocking Flock Camera With Comically Gigantic Protest Sign
newest submissions : multi • 2026-07-31 06:04

Wild Footage Shows Man Blocking Flock Camera With Comically Gigantic Protest Sign

submitted by /u/Plastic_Ninja_9014 to r/technology [link] [comments]

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1m read
Robin Wieruch • 2026-07-31 06:00

Agentic Coding: Bet on the Primitives

High-level libraries won because human implementation time was scarce. Agentic coding collapses that cost, and the rational bet moves back down the abstraction ladder ...

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1m read
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