How to Harden GitHub Actions Permissions with Least Privilege by Default
ILYAS RUFAI |
When a workflow has more permissions than it needs, a simple build job can become a path to repository changes, token misuse, or a wider blast radius than the team intended. The problem is easy to mis... read more
How to Build a Browser-Based PDF Color Inverter Tool Using JavaScript
Bhavin Sheth |
Reading PDF documents for long periods can become tiring, especially when the document contains bright backgrounds or when you're working in a low-light environment. In other situations, designers, de... read more
CSRF from Scratch: Browser Mechanics, Attacks, and Spring Security Implementation [Full Handbook]
Ashutosh Krishna |
If you've ever built a web application or configured Spring Security, you've almost certainly encountered Cross-Site Request Forgery (CSRF). In my previous guide, How OAuth 2.0 Works: A Practical Guid... read more
Why 2D Trapped-Ion Quantum Computers Could Be Easier to Scale Than 1D Architectures
Casmir Onyekani |
I still remember the first time I ran a Bell-state circuit on a quantum simulator. The code was only a few lines long, but it felt magical. Two qubits became entangled, and the simulator returned almo... read more
How an ECG on a Wrist Wearable Works and How It Compares to a Clinical Test
Reetain Raina |
For decades, recording an electrocardiogram (ECG) meant visiting a hospital or clinic. The doctors would place multiple electrodes on your chest and limbs to capture your heart's electrical activity.... read more
How to Customize an LLM for AI Agents using SFT and QLoRA
Darsh Shah |
In this tutorial, I’ll show you how to fine-tune a large language model for use in AI agents using supervised fine-tuning with QLoRA. This lets us customize a pre-trained model so it behaves the way w... read more
A Deep Dive into Behavioral Patterns: The Visitor Design Pattern and its Clean Operations Across Complex Object Structures
Oluwaseyi Fatunmole |
There's a problem that shows up in almost every growing software system, and most developers don't even realize they're hitting it until the damage is already done. You have a set of objects: differen... read more
How to Build a Privacy-First Medical Image De-Identification Agent with Claude and MCP
Lakshmi Mahabaleshwara |
Imagine asking an AI assistant to de-identify thousands of medical images. It runs the pipeline, tracks progress, summarizes every decision, and tells you which files need human review, all without ev... read more
Bluetooth Low Energy in Flutter: A Handbook for Devs
Nikheel Vishwas Savant |
Most Flutter tutorials stop at network calls and REST APIs. The moment you need to talk to a physical device, a heart rate monitor, a smart bulb, a fitness tracker, an industrial sensor, or your own c... read more
How to Fix the Dual-Write Problem in Node.js with the Outbox Pattern
Gabor Koos |
Imagine you're building an e-commerce platform where placing an order needs to trigger several things at once: the warehouse has to be told to prepare the shipment, the email service has to send a con... read more