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 ![Getiyo Logo](https://getiyo.com/static/getiyobanner.png)
 
 # Introduction
-Introducing Getiyo - your cutting-edge, virtual convergence hub for dynamic, interactive content delivery. Unleash the power of live streams, immersive gatherings, precision narrowcasting, seamless automations, displays, theatrical experiences and next-level show control. Effortlessly craft scenes with modules in our sleek, intuitive editor and publish them to multiple display endpoints with lightning-fast synchronization. Sit back as Getiyo orchestrates fluid transitions and generates visually-striking animations between scene metamorphoses. Embrace the future of digital interactivity with Getiyo!
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+
+Introducing **Getiyo**—built by Morphix Productions—as your cutting-edge, virtual convergence hub for dynamic, interactive content delivery. Unleash the power of live streams, immersive gatherings, precision narrowcasting, seamless automations, theatrical experiences, and next-level show control. Effortlessly craft scenes with modules in our sleek, intuitive editor and publish them to multiple display endpoints with lightning-fast synchronization. Sit back as Getiyo orchestrates fluid transitions and generates visually striking animations between scene metamorphoses. Embrace the future of digital interactivity with Getiyo!
+
+## Key Principles
+
+Modules in Getiyo are structured with a clear separation of concerns:
+
+-   **Server Side**<br>
+    The backbone of each module—handling data processing, business logic, and secure configuration. Server-side scripts leverage the `ModuleServerAPI` to:
+
+    -   **Module Properties:** which store sensitive or persistent data (API keys, authentication tokens, settings etc...). Defined in `module.json`, these properties remain hidden from clients and are accessed or updated exclusively via server-side code, ensuring integrity and confidentiality.
+    -   Orchestrate show control, file management, and communication with external services, powering the real-time behavior of your module.
+
+-   **User**<br>
+    The interactive front end of each module, where visual presentation and dynamic behavior come to life:
+
+    -   **User Page:** Every module must provide a user page (HTML, TS/JS, and CSS/SCSS) that defines its core UI. This page communicates with the server via the `ModuleClientAPI`, driving live interactivity and synchronized displays.
+    -   **Reference Properties:** For real-time, client-side customization, reference properties control styling (colors, fonts, layouts), animations, and on-the-fly content updates. Declared in `module.json`, they push live changes from the editor or during broadcast sessions directly into the client via `api.onPropertyUpdate()`, eliminating the need for redeployment.
+
+Most modules will rely solely on these two layers—server-side logic with secure module properties, and a user-facing interface enriched by live-updatable reference properties. Control or external pages are available for advanced use cases (custom moderation UIs or standalone module views) but are optional and should be added only when necessary.
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 -   [Config](./Config)
 -   Module Development
     -   [Module Structure](./ModuleStructure)
+    -   Important Principals
+        -   [ModuleClientAPI Principals](./ModuleClientAPIPrincipals)
+        -   [ModuleServerAPI Principals](./ModuleServerAPIPrincipals)
     -   [Module.json](./ModuleJSON)
         -   [Property](./ModuleJSONProperty)
         -   [Trigger](./ModuleTrigger)