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Developer
Learn. Build. Master. Deep, production-grade documentation, structured roadmaps, and real-world projects — crafted for engineers who want to go further.
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Featured Technologies
Hand-crafted, in-depth documentation for the tools that power modern software. Each one lives on its own subdomain.
Java
The enterprise backbone. Strongly typed, battle-tested, everywhere.
Spring Boot
Production-grade Java services with convention over configuration.
Node.js
Event-driven JavaScript on the server, at scale.
NestJS
A progressive Node.js framework for opinionated, testable backends.
Express.js
The fast, unopinionated, minimalist web framework for Node.js.
JavaScript
The language of the web — from DOM scripting to 2D canvas games.
TypeScript
JavaScript that scales — static types for safer, self-documenting code.
React
Declarative UIs with components, hooks, and a vast ecosystem.
Angular
A complete TypeScript framework for building scalable enterprise apps.
Astro
The web framework for content-driven sites — ship less JavaScript.
AWS
The cloud platform that powers a third of the internet.
Apache Kafka
Distributed event streaming for high-throughput pipelines.
Infrastructure as Code
Provision and version cloud infrastructure with Terraform and HCL.
DevOps
Linux servers, web servers, databases, CI/CD, and shipping to production.
Personality Development
Ace the HR and managerial rounds — confident answers, real scenarios, and the soft skills that get developers hired.
DSA
Data Structures & Algorithms — one course, four languages. Switch between C++, Java, JavaScript, and Python on every example.
Follow a path, not just a tutorial
Structured, opinionated journeys that take you from fundamentals to production-ready expertise.
Backend Engineering
Design robust APIs and services. From language fundamentals to distributed systems.
- Java
- Spring Boot
- Databases
- Kafka
- System Design
Frontend Engineering
Craft fast, accessible interfaces with modern component architecture.
- JavaScript
- React
- State Management
- Performance
- Testing
MERN Stack Engineering
Build full-stack JavaScript apps end to end with MongoDB, Express, React, and Node.js.
- Node.js
- Express.js
- MongoDB & Mongoose
- React
- Full-Stack Integration
MEAN Stack Engineering
Deliver enterprise full-stack apps with MongoDB, Express, Angular, and Node.js.
- Node.js
- Express.js
- MongoDB & Mongoose
- Angular
- Full-Stack Integration
Cloud Engineering
Architect resilient, cost-efficient systems on the cloud.
- AWS Core
- Networking
- IAM & Security
- Serverless
- IaC
DevOps
Run Linux servers, ship apps to production, and automate everything in between.
- Linux & Ubuntu
- Web Servers & Domains
- Databases
- Containers
- CI/CD
- Monitoring & SRE
System Design
Scale to millions. Caching, sharding, queues, and trade-offs that matter.
- Scalability
- Caching
- Data Modeling
- Messaging
- Resilience
Popular documentation
The most-read guides across the platform, updated continuously.
JDK, JRE & JVM
Understand the difference between the JDK, JRE, and JVM — the three layers of the Java platform every developer needs to know.
Read guideCollections Framework
A complete guide to Java's Collections Framework — the built-in library of data structures and algorithms every Java developer relies on daily.
Read guideStream API
Master the Java Stream API to process collections with filter, map, reduce, and collect — writing clean, declarative, high-performance data pipelines.
Read guideWhat is Spring Boot?
Learn what Spring Boot is, the problems it solves with auto-configuration, starters, and embedded servers, plus how it differs from plain Spring.
Read guideHooks Overview & Rules
What hooks are, the two Rules of Hooks, and a map of the built-in hooks.
Read guideWhat is Node.js?
Learn what Node.js is, its event-driven non-blocking architecture, and why it powers modern server-side JavaScript.
Read guideTools that respect your time
Fast, private, client-side utilities for everyday development. Nothing leaves your browser.
JWT Decoder
Decode and inspect JSON Web Tokens without leaving your browser.
JSON Formatter
Format, validate, and minify JSON with instant feedback.
Regex Tester
Test regular expressions live against your sample text.
UUID Generator
Generate RFC-4122 v4 UUIDs in bulk, copy with one click.
Cron Generator
Build and explain cron expressions in plain English.
Base64 Encoder
Encode and decode Base64 text and files safely client-side.
Engineering, distilled
Deep dives, patterns, and lessons from building real systems.
Even Realities Hits $1B Betting Against the Camera in Smart Glasses
Even Realities, a Shenzhen startup founded by ex-Apple engineers, raised $150M in a pre-Series B led by Meituan and Tencent on July 6, 2026, reaching a $1 billion valuation. Its pitch: camera-free, display-first smart glasses that take on Meta on privacy. Here's the round, the product, and the strategy.
Microsoft Cuts 4,800 Jobs and Guts Xbox in a 'Painful Reset' for AI
Microsoft is cutting roughly 4,800 jobs (about 2.1% of its workforce) on July 6, 2026, with Xbox facing up to 3,200 cuts over the next year and four studios — Ninja Theory, Undead Labs, Compulsion Games and Double Fine — divested. Here's what happened, who's affected, and why it's framed as an AI-spending reset.
Nvidia's Next-Gen 'Kyber' AI Rack Slips to 2028 on a 78-Layer Snag
Nvidia's Kyber (NVL144) rack system — built to house its 2027 Rubin Ultra chips — is reportedly delayed by more than 12 months to 2028 on PCB manufacturing snags, per SemiAnalysis. A 78-layer midplane and a rejected backup plan are at the center. Here's the delay, the cause, and why AMD and Google get an opening.
Need development help?
Beyond learning — our team ships production software. From APIs to cloud architecture, we partner with teams that demand quality.
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Website Development
High-performance marketing sites and web apps that convert.
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Backend Development
Scalable APIs and services built on Java, Spring, and Node.
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API Development
Well-documented REST & GraphQL APIs with first-class DX.
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Cloud Solutions
Architecture, migration, and cost optimization on AWS.
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Consulting
Technical strategy, code reviews, and team enablement.
Let's build something great
Have a project in mind or a question about the platform? Send us a note and we'll get back to you.
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- Remote-first, working worldwide