Mathias Paulenko
Software Engineer & Founder of StackPractices
Mathias Paulenko
Software Engineer
Software engineer with 12+ years of experience building production systems across Python, JavaScript, React, and DevOps. I have contributed to enterprise projects spanning CI/CD pipelines, API design, cloud infrastructure, and full-stack development.
StackPractices is my personal project, born from a simple belief: great documentation should be copy-paste ready. Every recipe, pattern, and guide on this site is designed to save you time and help you ship faster.
Published Works (1032)
Share Workflow Logic with GitHub Actions Reusable Workflows
How to create and consume reusable workflows in GitHub Actions, covering inputs, secrets,...
Mount Configs and Secrets into Kubernetes Pods
How to mount ConfigMaps and Secrets into Kubernetes pods using env vars, volumes, projected...
Package Kubernetes Manifests with Helm Charts
How to create, template, and deploy Kubernetes applications using Helm charts, covering values,...
Store Terraform State in S3 with DynamoDB Locking
How to configure Terraform remote state with S3 backend and DynamoDB locking, covering state...
Isolate Environments with Terraform Workspaces
How to use Terraform workspaces for environment isolation, covering workspace creation, conditional...
Container Queries for Component Responsiveness
How to use CSS container queries for component-level responsive layouts that adapt to their...
Design Tokens with CSS Custom Properties
How to build a design token system using CSS custom properties, including color scales, spacing,...
Dark Mode with prefers-color-scheme and CSS Variables
How to implement dark mode using CSS prefers-color-scheme media query, CSS custom properties, and...
When to Use useMemo and useCallback
How and when to use React's useMemo and useCallback hooks for performance optimization, and when...
Virtualize Long Lists with react-window
How to render large lists efficiently in React using react-window for DOM virtualization, including...
Reactive State Management with Svelte Stores
How to manage reactive state in Svelte using writable, readable, derived stores, and custom stores...
Exhaustive Type Checking with Discriminated Unions
How to use TypeScript discriminated unions for exhaustive type checking, ensuring all cases are...
Build Reusable Utility Types with Generics
How to create reusable TypeScript utility types using conditional types, mapped types, template...
Data Fetching with Vue 3 Composition API
How to fetch and manage data in Vue 3 using the Composition API with ref, computed, watch, and...
Custom Health Checks with Spring Boot Actuator
How to implement custom health indicators with Spring Boot Actuator, including database, Redis,...
Expose Metrics with Micrometer and Prometheus
How to expose custom application metrics using Micrometer and Prometheus in Spring Boot, including...
High-Performance Logging with pino
How to use pino for fast structured JSON logging in Node.js, including log levels, child loggers,...
Error Tracking with Sentry in Express
How to integrate Sentry for error tracking in Node.js Express applications, including error...
Rotate Logs Daily with Winston
How to configure daily log rotation in Node.js using winston and winston-daily-rotate-file,...
Distributed Tracing with OpenTelemetry
How to implement distributed tracing in Python with OpenTelemetry SDK, including spans, context...
Expose Business Metrics with Prometheus
How to expose custom business metrics in Python using prometheus_client, including counters,...
Structured JSON Logging with structlog
How to emit structured JSON logs in Python using structlog, including context binding, log levels,...
Detect Bugs in Java with SpotBugs Static Analysis
How to configure SpotBugs for Maven and Gradle, interpret bug patterns, suppress false positives,...
Enforce Security Rules in Node.js with
How to configure eslint-plugin-security to detect insecure patterns in Node.js code, handle false...