packages/
├── core/           # Platform-agnostic types, utilities, schemas
├── collector/      # Central event processing engine
├── config/         # Shared config (eslint, jest, tsconfig, tsup)
├── web/
│   ├── core/       # Web-specific utilities
│   ├── sources/    # browser, dataLayer
│   └── destinations/ # gtag, meta, api, piwikpro, plausible
└── server/
    ├── core/       # Server-specific utilities
    ├── sources/    # gcp
    └── destinations/ # aws, gcp, meta

apps/
├── walkerjs/       # Ready-to-use browser bundle
├── quickstart/     # Code examples (source of truth for patterns)
└── demos/          # Demo applications

// Types
import type { WalkerOS } from '@walkeros/core';

// Utilities
import {
  getEvent,
  createEvent, // Event creation
  getMappingEvent,
  getMappingValue, // Transformations
  isString,
  isObject,
  isDefined, // Type checking
  assign,
  clone, // Object operations
  tryCatch,
  tryCatchAsync, // Error handling
} from '@walkeros/core';