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Category	Key Tools	Why It Matters
Containers	Docker, Podman	Consistent environments from dev to prod
Orchestration	Kubernetes, Docker Swarm	Auto-scaling and self-healing apps
IaC	Terraform, Pulumi, Ansible, Bicep	Version-controlled infrastructure
CI/CD	GitHub Actions, Jenkins, GitLab CI, Azure DevOps	Automated testing + deployments
GitOps Operator	ArgoCD	Syncs deployed state with Git (not full CI/CD)

Feature	Tech Used	Benefit
JWT Authentication	`jsonwebtoken`	Secure endpoints with stateless auth
Swagger API Docs	`swagger-ui-express`	Auto-generated interactive documentation
Unit Testing	`mocha` + `chai`	90%+ test coverage for reliability
Modular MVC	Express.js	Clean separation of concerns

	import os
	import sys
	import time
	import math
	import pickle
	from contextlib import nullcontext
	from pathlib import Path
	import subprocess
	from dataclasses import dataclass
	import inspect