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Initial Website Launch

· 2 min read
mazhixiang377
mazhixiang377
DejaOS Engineer

Familiar Feeling. New Frontier. A JavaScript-powered OS redefining embedded development.

While the DejaOS GitHub repository was released around this time last year, we've been missing a dedicated official website. Today, we're excited to announce the launch of the DejaOS official website built on the Docusaurus framework, marking a crucial milestone in DejaOS's community development and ecosystem building.

Last update

July 05, 2025

Overview​

DejaOS development began two years ago, initially exploring embedded scripting possibilities by combining Lua with C. Our technical direction shifted when we discovered QuickJS, the JavaScript engine developed by Fabrice Bellard. We redesigned the entire system architecture using QuickJS as the core, integrated with the LVGL graphics engine.

On our DW200 devices, DejaOS rapidly progressed from trial to production, successfully deployed across multiple smart hardware applications including card readers, access control systems, and facial recognition devices. We've gradually replaced early C-based firmware with JavaScript applications.

Last year around this time, we officially released the DejaOS GitHub repository. To date, over 100 individual and enterprise developers have participated in collaboration, receiving widespread positive feedback.

To better serve developers and promote ecosystem development, we've now launched our official website: https://dejaos.com
The website will focus on providing technical documentation, development tutorials, and real-world case studies, complementing the open-source code on GitHub.

Website Content Structure​

  • Guide: Introduces DejaOS core concepts, development environment setup, and common troubleshooting;
  • Modules: Covers 40+ modules provided by DejaOS and their API usage;
  • Blog: Shares DejaOS technical updates, announcements, and in-depth articles;
  • Showcase: Displays real-world cases and demos developed with DejaOS, with source code links to GitHub.

Welcome to DejaOS — The Next-Generation IoT Development Platform​

DejaOS will continue to drive embedded systems toward greater efficiency, usability, and openness. We sincerely invite more developers to join us in building an open-source ecosystem and collectively usher in the next chapter of IoT development.