Restructur and start dedicated pages for terminology and user tutorials

docs/01-overview.md

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+sidebar_position: 1
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+
+# Overview
+
+Stardust XR _(formerly known as Stardust)_ is an XR [display server](https://itsfoss.com/display-server) designed for Linux-based systems<!-- (possibly most unix-based too, but untested)-->.<br/>
+Unlike traditional display servers that focus on 2D screens, Stardust XR introduces new conventions to utilize unbounded 3D space in virtual or real environments.
+
+## Priorities
+
+- **3D Environment Focus**: While supporting 2D clients through the Wayland protocol, Stardust XR primarily aims to create and manage 3D environments.
+
+- **Standard Interfaces**: Utilizes Wayland and OpenXR for 2D and XR app integration.
+
+- **Stardust Protocol**: Implements a special protocol for:
+  - Creating virtual objects
+  - Developing 3D UIs around 2D apps (Panel Shells)
+  - Handling data as Items that can represent files, Wayland surfaces, etc.
+
+- **Personal Device Interaction**: Focuses on individual user interactions rather than collaborative 3D spaces.
+
+- **Flexible Object Interaction**: Users can choose objects that best suit their current scenario, with easy setup for default configurations.
+
+## Architecture
+
+TODO: add some diagram of the core components needed and how they interface
+<!-- example: https://woodpecker-ci.org/docs/next/usage/terminology#woodpecker-architecture -->
+
+## Projects & Components
+
+- [**telescope**](https://github.com/StardustXR/telescope): bundle most used components to have a demo environment set up
+- ...
+
+<!-- TODO: add more core components and projects! -->
+