Tutorials
Step-by-step technical guides on Docker, Linux, Python, Go, and more.
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TypeScript for JavaScript Developers 2026: From Types to a Typed REST API
TypeScript tutorial for JavaScript developers 2026: type annotations, interfaces vs types, generics, tsconfig.json strict mode, and build a typed Express REST API. Node.js 22 runs .ts natively.
Vibe Coding 2026: Build a SaaS with Claude Code Without Writing Most of the Code
Vibe coding tutorial 2026: use Claude Code to build a real SaaS MVP — FastAPI backend, React frontend, Stripe payments, and Postgres — in hours instead of days. Includes prompt engineering tips and when to intervene manually.
Zero Trust Architecture for Developers 2026: mTLS, Short-Lived JWTs, Vault, and Network Policies
Zero Trust Architecture tutorial for developers 2026: implement mTLS between microservices with cert-manager, issue short-lived JWTs with HashiCorp Vault, enforce Kubernetes NetworkPolicy, and replace your VPN. Open-source tools only.
Argo CD GitOps Tutorial 2026: Deploy Kubernetes Apps from Git
Learn GitOps with Argo CD in 2026. Install Argo CD, connect Git repos, deploy Helm charts, configure RBAC and SSO, and implement the app-of-apps pattern for multi-cluster deployments.
Context Engineering for AI Agents 2026: The Complete Guide
Context engineering is the technique that raises AI agent success rates from 30% to 90%. Learn how to design context windows, implement RAG, manage memory, and build reliable AI agents in 2026.
Crossplane AWS Tutorial 2026: Kubernetes-Native Infrastructure Provisioning
Learn Crossplane in 2026 — the CNCF top IaC trend for Kubernetes-native infrastructure. Provision AWS RDS, S3, and VPC using Crossplane Compositions, manage cloud resources as Kubernetes CRDs, and compare with Terraform.
eBPF and Cilium Tutorial 2026: Kubernetes Networking and Security
Learn eBPF and Cilium in 2026 — the #1 Kubernetes networking trend. Install Cilium as your CNI, write network policies, use Hubble for observability, and replace kube-proxy with eBPF.
K3s Tutorial 2026: Run Kubernetes on a Raspberry Pi or 1GB VPS
K3s is the lightweight Kubernetes distribution with 200% YoY growth. Install K3s on a Raspberry Pi or 1GB VPS, deploy apps, configure persistent storage, set up Traefik ingress, and add worker nodes.
Building a Local LLM Machine in 2026: Complete Hardware Guide
Complete 2026 guide to building a PC for running local LLMs. GPU VRAM requirements, RAM, storage, three full build examples from $800 to $6000, and Ollama/llama.cpp setup.
Build an MCP Server in Python: Complete Tutorial 2026
Learn to build a Model Context Protocol (MCP) server in Python from scratch. Expose tools, resources, and prompts to Claude and other LLMs with the official MCP SDK.