opencv
From Linear Algebra to OpenCV: Understanding Image Transformations
Learn how fundamental linear algebra concepts like vectors, matrix multiplication, and span power everyday image transformations in OpenCV.
Ganesh Kumar
mcp
How I Reduced AI Coding Agent Token Waste by 70%
AI coding agents often read more code than necessary. When a developer asks a simple question about a function, the agent searches multiple files, opens entire source files, and fills the context window with irrelevant tokens. Usually, with a bigger codebase, it takes a lot of time to execute, consumes
cloud
Cloud Computing Is Just npm install for Infrastructure
Every time you pull in a third-party package instead of writing something yourself, you make a trade: you stop owning the internals, but you're still on the hook for how you use it, what it costs you at scale, and what happens the day it breaks in production.
painlessmesh
How PainlessMesh Turns Your NodeMCU Into a Network That Heals Itself
You've probably built a project where one NodeMCU talks to your laptop over WiFi and thought this is great. But what if we need 10 sensors across a large building? And that's where the issues appear. In this article, we'll discuss what happens after
nomad
Locking Down Nomad: How to Implement ACLs and Secure Your Cluster
Nomad is a flexible workload orchestrator that enables an organization to easily deploy and manage any containerized or legacy application using a single, unified workflow. Nomad can run a diverse workload of Docker, non-containerized, microservice, and batch applications. With powerful features, it becomes very important to secure the Nomad cluster.
mcu
How Do Smart Devices Perform Multiple Tasks?
Ever wonder how your Alexa, robot vacuum cleaner, and smartwatch seamlessly perform multiple tasks without getting stuck in the middle? How exactly are these devices programmed to handle it all? You came to the right place to understand how it happens under the hood. In this article, we will understand
golang
How Go Slices Work Under the Hood: What Makes Them Stand Out from Other Languages
Slices are one of the most commonly used data structures in Go. They appear simple on the surface, but their design is carefully engineered to provide flexibility without sacrificing performance. In this article, we will examine how Go slices work internally and analyze the algorithm that enables them to grow
Go
How to Build a In-Memory Cache in Go Using Generics With TTL
There is a famous saying in computer science: "There are only two hard things in Computer Science: cache invalidation and naming things." — Phil Karlton It is challenging to balance performance (caching aggressively) with accuracy (ensuring users see the latest data immediately). If you cache too much, users see
git
From Commits to DAGs: How Git Uses a DAG to Track Your Code History
Most developers use Git daily, often memorizing commands without fully understanding what happens under the hood. We know how to use git add and git commit, but do we really know how it works? At its core, Git is a simple key-value data store. It is a database, and understanding
clamav
CAVLite: Lightweight, Memory-Efficient Security Audit for Low-RAM Servers.
If you run a server with limited resources—specifically, standard 4GB RAM and 2 vCPU setup- you are likely familiar with the constant, stressful balancing act between performance and security. You know you need antivirus protection and system audits. You know the risks of leaving a server vulnerable to intruders,
ufw
Announcing udwall: A New Tool for Making UFW and Docker Play Nice With Each Other
Many of us believe that the combination of UFW and Docker is the standard stack for deploying applications securely without exposing docker container ports. Configuring UFW via provisioning tools like Ansible is usually seamless, giving us confidence that our servers are secure. However, there is a massive, often overlooked security
tcp
How TCP and UDP Protocols Work: Understanding Their Critical Role in Internet Communication
How does data travel from a server to your screen in a split second? What is the logic behind it? What rules and protocols does it use that make it all work?