Tutorials
Step-by-step technical guides on Docker, Linux, Python, Go, and more.
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Python Decorators Tutorial 2026: 8 Production Patterns from Retry to Auth
Python decorators tutorial 2026: mechanics, functools.wraps, class-based decorators, and 8 production patterns — retry with backoff, TTL cache, rate limiter, type validator, deprecation, singleton, and FastAPI auth.
Python Logging Best Practices 2026: stdlib vs structlog vs loguru with JSON Output
Python logging best practices 2026: stdlib logging pitfalls, dictConfig template, structlog for structured JSON logging, loguru for simplicity, FastAPI middleware integration, and Sentry setup.
Python Virtual Environments in 2026: venv vs conda vs uv vs Poetry — When to Use Each
Python virtual environments in 2026 compared: venv vs conda vs uv vs Poetry — speed benchmarks, use case decision guide, pyproject.toml workflow, and Docker best practices.
PyTorch for Beginners 2026: Train Your First Neural Network (No Math PhD Required)
PyTorch tutorial for beginners 2026: tensors, autograd, neural network with nn.Module, train a CIFAR-10 image classifier, GPU training on Colab, and transfer learning with ResNet.
Redis Tutorial for Python Developers 2026: Caching, Rate Limiting, Pub/Sub, and Streams
Redis tutorial for Python developers 2026: API response caching with cache invalidation, token bucket rate limiter, pub/sub for real-time notifications, and Redis Streams for event sourcing — with redis-py and aioredis.
Terraform Tutorial 2026: Deploy AWS Infrastructure for Python Apps — VPC, EC2, RDS, S3
Terraform tutorial 2026: deploy a full AWS stack for Python apps — VPC with public/private subnets, EC2, RDS PostgreSQL, S3, modules, remote state in S3, and estimated monthly cost.
tmux Tutorial 2026: From Zero to Productive with Sessions, Config, and Neovim Integration
Complete tmux tutorial 2026: sessions, windows, panes, full .tmux.conf config, automation startup script, SSH persistence, neovim integration with vim-tmux-navigator, and tpm plugins.
Ansible Roles and Galaxy: Modular Playbooks for Production (2026)
Ansible roles tutorial 2026. Create roles with tasks, templates, handlers, and defaults. Use Ansible Galaxy community roles, pin versions in requirements.yml, and test with Molecule + Docker.
awk, sed, and grep for Linux Sysadmins: Practical Guide with Real Examples (2026)
Master awk, sed, and grep for Linux sysadmin work in 2026. Parse nginx logs, edit configs in-place, filter processes, and build log analysis pipelines. Every example is real-world.
Claude Code: Complete Terminal AI Agent Guide (2026)
Complete Claude Code tutorial 2026. Install, configure CLAUDE.md, use subagents, integrate MCP servers, run in GitHub Actions CI. Anthropic's SOTA coding agent lives in your terminal.