DevOps
CI/CD that makes releases safer
Build a delivery pipeline around reproducible artifacts, meaningful checks, controlled deployment, and a recovery path that actually works.
UNDERSTAND / BEYOND THE BUZZWORDS
Tech Insights.
The ideas behind the technology. Simple explanations, technical depth, and something useful to take away.
Cloud
Cloud computing: the concepts behind the services
Understand regions, managed services, scaling, shared responsibility, and costs before building an architecture around a provider's product names.
Programming
Database indexes: faster reads, deliberate tradeoffs
Learn how B-tree indexes, composite keys, query plans, and pagination affect real database performance—and why more indexes are not always better.
DevOps
Docker and Kubernetes: different jobs, better together
Understand containers, images, orchestration, and when a simple deployment is enough before you reach for a cluster.
AI
How does AI actually work?
From examples to predictions: a practical explanation of training, inference, neural networks, and what machine learning can and cannot promise.
AI
LLMs and transformers, from tokens to answers
A grounded walkthrough of tokenization, attention, pretraining, and generation, without treating a fluent answer as proof of understanding.
AI
RAG explained: give an AI the right evidence
How retrieval-augmented generation connects language models to documents, and why retrieval quality matters as much as the model.
Programming
REST vs GraphQL: choose around your clients
Compare resource-oriented HTTP APIs with GraphQL's typed query model, including caching, authorization, performance, and practical tradeoffs.
System Design
Scaling a web application without guessing
A practical system-design path from one server to resilient services, driven by workload, latency budgets, and the cost of each added component.
System Design
What happens after you type a URL?
Follow a browser request through DNS, secure connections, HTTP, servers, and rendering to understand the internet's everyday machinery.