Initial community-sdk structure

.gitignore

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+.idea
+.DS_Store

LICENSE

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+MIT License
+
+Copyright (c) 2025 Open X4 E-Paper Contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# OpenX4 E-Paper Community SDK
+
+A **community-maintained SDK** for building firmware and tools for the **Xteink X4** device. 
+This repository is designed to be included as a **Git submodule** inside PlatformIO projects, providing a shared set of 
+libraries, utilities, and development workflows that make working with the X4 simple and consistent.
+
+## ✨ **What is this?**
+
+The **OpenX4 E-Paper Community SDK** provides:
+
+* **Common PlatformIO-friendly components** for the Xteink X4
+* **Reusable libraries** for display control, graphics, hardware helpers, utilities, etc.
+* **Tools** to support flashing, packaging, testing, and device workflows
+* A central place for **community contributions**, improvements, and shared knowledge
+
+The SDK is intentionally modular - bring it into your project and use only what you need.
+
+## 📁 Repository Structure
+
+```
+community-sdk/
+├── libs/           # Reusable components for X4 firmware
+│   ├── display/       # E-paper helpers & drivers
+│   ├── graphics/      # Drawing, fonts, UI utilities
+│   ├── hardware/      # GPIO, power, sensors, timings, etc.
+│   └── ...            # Add new modules here!
+│
+└── tools/          # Dev tools for X4
+    ├── flash/         # Flash helpers, scripts, workflows
+    ├── assets/        # Conversion tools for images/fonts
+    └── ...            # Community-contributed utilities
+```
+
+Each lib aims to be **self-contained**, **documented**, and **PlatformIO-friendly**.
+Libs should be categorized under `libs/` based on functionality, and then contained within a directory under that root.
+
+## 📦 Adding to Your PlatformIO Project
+
+Add this repository as a submodule:
+
+```bash
+git submodule add https://github.com/open-x4-epaper/community-sdk.git lib/openx4
+```
+
+Then include any library you want in your code:
+
+```cpp
+#include <openx4/display/BufferedEinkDisplay/BufferedEinkDisplay.h>
+#include <openx4/graphics/Canvas/Canvas.h>
+```
+
+Or load tools from the `tools/` directory as needed.
+
+## 🤝 Contributing
+
+This is a **community-driven project** - contributions are not only welcome but encouraged!
+
+Ways you can help:
+
+* Improve or extend existing libraries
+* Add new modules to `libs/`
+* Build utilities for the `tools/` directory
+* Report issues, propose features, or help refine the API
+* Improve documentation
+
+### Contribution guidelines (short version)
+
+1. Keep modules self-contained
+2. Prefer zero-dependency solutions where practical
+3. Document your additions
+4. Use clear naming and consistent structure
+5. Be friendly and constructive in PR conversations
+
+A full contributing guide will be added as the project grows.
+
+## 📝 License
+
+This SDK is released under an open-source MIT license. To keep things simple, all contributions and code must also 
+fall under this license.
+
+## 💬 Community
+
+Feel free to open GitHub issues for support, improvements, or discussion around the Xteink X4 ecosystem.
+Join the discord here: https://discord.gg/2cdKUbWRE8