🌍 Dev.to

Building a Smart Task Management REST API with Node.js and Express

Building a Smart Task Management REST API with Node.js and Express Introduction REST APIs are an important part of modern web development because they allow applications to communicate with servers and exchange data efficiently. One practical way to understand backend development is by building a task management REST API using Node.js and Express. This project demonstrates how to organize backend functionality, manage tasks, authenticate users, and handle HTTP requests. ...
🌍 Dev.to

Nginx reverse proxy + HTTPS in 5 minutes (video + every command)

I recorded a short walkthrough of putting Nginx in front of an app and getting a free Let's Encrypt certificate onto it. Everything in the video runs on a real Ubuntu server, nothing is staged. Below are the exact commands used, so you can copy them instead of pausing the video. What you need A Linux server. I used Ubuntu 24.04 , which ships Nginx 1.24 . A domain or subdomain whose A record points at the server . If it's on Cloudflare, keep the record DNS onl...
Chumsak: a local Gemma 4 grader for Korea's 2%-pass-rate engineering exam
🌍 Dev.to

Chumsak: a local Gemma 4 grader for Korea's 2%-pass-rate engineering exam

This is a submission for the Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle What I Built Korea has an IT certification called μ •λ³΄κ΄€λ¦¬κΈ°μˆ μ‚¬, the Professional Engineer exam in Information Management. The written part is four 100-minute sessions of handwritten essays, and you need 60 out of 100 to pass. In 2025, 1,824 people sat it and 41 passed (2.2%) . I'm a backend developer four years into my career, .NET first and Python now, and this exam is my long game. I can...
🌍 Dev.to

How to Build Cross-Chain Bridge Solutions with Smart Contract Security

Blockchain interoperability is becoming increasingly important as businesses build applications across multiple blockchain networks. Users want to transfer digital assets, access decentralized applications, and interact with protocols without being restricted to a single ecosystem. Cross-chain bridges help connect these networks, but their architecture introduces security challenges that businesses must address from the beginning. Building reliable cross-chain bridge solutions requires more t...
🌍 Dev.to

How to scrape Threads posts without logging in (Python and JavaScript)

Disclosure first: I built the scraper this post uses ( Threads Scraper on Apify ), so take my enthusiasm with a grain of salt. The code below is real and I ran every snippet before posting it. The outputs are what I got on October 15. Why not just use the official API? Meta does have a Threads API, but it needs a Meta developer app and an access token, and it's built mostly around your own account. If you want "the last 50 posts of some public account" or "what people posted ab...
🌍 Dev.to

Your Chat History Is Eating the Context Window β€” Fix It With a Reducer

Turn nine of a support chat feels fine. Turn ninety is a different animal. Every request resends the system prompt, three agent loops of tool noise, the user's third restatement of the same bug, and yesterday's dark-mode tangent. The model does not mind. Your invoice does β€” and attention quality usually dies before the hard token limit. messages.TakeLast(20) in one controller is not a policy. The second entry point forgets it. A tool-using agent keeps a function call without its result. Som...
🌍 Dev.to

I built a cross-platform Android emulator manager with Tauri 2 + Rust β€” no Android Studio required

I got tired of three things at once: the Android emulator CLI is tedious, Android Studio is a multi-gigabyte install for just running AVDs, and every decent alternative is either closed-source or expensive. So I built Enmulator β€” a desktop app that manages Android Virtual Devices end to end, ships on Windows/macOS/Linux, and doesn't need Android Studio installed. It's Tauri 2 on the backend (Rust, 13 modules), React 18 on the frontend, and it's GPLv3. What it actually does ...
🌍 Dev.to

SudokuNova v0.2.1: Improving the Windows Desktop Experience with Kotlin

SudokuNova v0.2.1: Improving the Windows Desktop Experience with Kotlin SudokuNova v0.2.1 is now available on GitHub! This release is a focused maintenance update designed to make the Windows desktop experience more convenient, improve native application integration, and strengthen installation packaging. SudokuNova is an open-source, offline-first Sudoku application built using Kotlin and Compose Multiplatform. Why this release matters Building a cross-platform applica...
React Performance Debugging: Find and Fix Unnecessary Re-Renders with Real Examples
🌍 Dev.to

React Performance Debugging: Find and Fix Unnecessary Re-Renders with Real Examples

Have you ever clicked a button in a React application and noticed that components you didn't touch were rendering again? Maybe a dashboard feels sluggish when updating a counter. Perhaps a large list becomes slow when typing into a search field. Or maybe you've added React. memo, useMemo, and useCallback , but the performance hasn't improved much. These problems are common in React applications, but the solution isn't to add memoization everywhere. The first step is to identify what...
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Haxy on Haxy

Comments
How to Give an AI Agent Safe Access to an Internal API with MCP
🌍 FreeCodeCamp

How to Give an AI Agent Safe Access to an Internal API with MCP

Our on-call team keeps a small internal notes API. The web app in front of it shows who's holding the pager, which days are frozen for deploys, and where the runbooks live. A developer on that team wa
HackerNews

Even Without AI, the Risk of a Biological Attack Is Terrifying

Article URL: https://www.motherjones.com/politics/2026/09/ai-anthropic-pandemic-biological-war-scenario-bioterrorism-annie-jacobsen-book-gain-function-research-pathogens-ethics/ Comments URL: https://news.ycombinator.com/item?id=50101181 Points: 1 # Comments: 0
HackerNews

AI has changed my engineering leadership role

Article URL: https://bjorg.bjornroche.com/management/AI-leadership/ Comments URL: https://news.ycombinator.com/item?id=50101212 Points: 1 # Comments: 0
HackerNews

Costs of Switching AI Models

Article URL: https://www.youtube.com/watch?v=zUCeaaGCRuc Comments URL: https://news.ycombinator.com/item?id=50101472 Points: 3 # Comments: 0
HackerNews

How are you centralising AI for development at your company?

I'm asking this because I'm seeing some frustrating patterns and if I may be bold, I think my answer is the correct one. Here's one I'm seeing: its the SDLC agent pattern and I think its wrong. Step 1: you have good AGENTS.md documentation for your code and other principles. (this is good) Step 2: There's a somewhat strict workflow and steps enforced like planner agent, reviewer agent, critique agent and directly create a PR from a ticket. Every human intervention here is considered an anti-patt...
HackerNews

Management in the Age of AI

Article URL: https://staysaasy.com/management-in-the-age-of-ai/ Comments URL: https://news.ycombinator.com/item?id=50101724 Points: 2 # Comments: 0