| Internals | Theory | Network | Technique | Problems |

|----------------------|------------------------------|-------------------|------------------|-------------------|

| 🟦 Nonblocking I/O | 🟦 I/O bound tasks | 🟦 HTTP(S) | ⬜ Logging | ⬜ Memory leaks |

| 🟦 Event Loop | 🟦 CPU bound tasks | 🟦 TCP/SSL | ⬜ Testing | ⬜ Resource leaks |

| 🟦 commonjs | 🟦 Memory bound tasks | 🟦 UDP | ⬜ CI/CD | ⬜ Blocking code |

| 🟦 ECMA modules | 🟦 Multilayer approach | 🟦 TLS | ⬜ Readable | ⬜ Data race |

| 🟦 Network API | 🟦 Dependencies | 🟦 Websocket | ⬜ Writable | |

| 🟦 Addons | 🟦 Inversion of control | 🟦 SSE | ⬜ Transform | |

| 🟦 N-API | 🟦 Dependency injection | 🟦 HTTP/3 (QUIC) | ⬜ back pressure | |

| 🟦 Webassembly | 🟦 GRASP for JS and Node.js | 🟦 Long polling | ⬜ Buffer | |

| 🟦 npm | 🟦 SOLID for JS and Node.js | 🟦 REST | ⬜ Console | |

| 🟦 node_modules | 🟦 GoF for JS and Node.js | 🟦 RPC | ⬜ Inspector | ⬜ |

| 🟦 package.json | 🟦 Distributed systems | 🟦 Routing | | ⬜ |

| 🟦 vm isolation | 🟦 Highload applications | 🟦 IP sticky | | ⬜ |

| 🟦 command line args | 🟦 DDD | 🟦 DoS | | ⬜ |

| 🟦 Node.js CLI | 🟦 Clean architecture | 🟦 DDoS | | ⬜ |

| 🟦 Graceful Shutdown | 🟦 Domain in the middle | 🟦 XSS | | ⬜ |

| 🟦 Clustering | 🟦 Message Queue | 🟦 Path traversal | | ⬜ |

| 🟦 Load balancing | 🟦 Transport-agnostic server | 🟦 CSRF | | ⬜ |

| 🟦 Serverless clouds | 🟦 Framework-agnostic app | 🟦 DNS | | ⬜ |

| 🟦 FaaS clouds | 🟦 Interactive applications | 🟦 Fetch | | ⬜ |

| 🟦 Debugging node.js | 🟦 Real-time applications | 🟦 zlib | | ⬜ |

| 🟦 crypto | 🟦 CQS and CQRS | | | ⬜ |

| 🟦 SharedArrayBuffer | 🟦 Event Sourcing | | | ⬜ |

| 🟦 child_process | 🟦 Shared memory | | | |

| 🟦 worker_threads | | | | |

| 🟦 Streams | | | | |