🎉 Add Siyuan-Note

[Shawnkurt]

🪩 Provide a link to the proposed addition

https://github.com/siyuan-note/siyuan

😳 Explain why it should be added

1. Open source knowledge management system with 38.5k stars on Github (as of Oct. 20, 2025).
2. Fully local for security reasons (official & 3rd party sync available too)
3. "Block" as basic content units, offering endless possibilities of note managing.
4. Two way links for building personal knowledge network.
5. Fruitful ecosystem: themes and plugins. Vital community.
6. Please read the official readme for more.
   I'm just a happy use of this awesome open source software and I'd like to request for adding it to the awesome-mac list. Thank you very much for your time!

📖 Additional context

Full Readme: https://github.com/siyuan-note/siyuan/blob/master/README.md

🧨 Issue Checklist

• I have checked for other similar issues
• I have explained why this change is important
• I have added necessary documentation (if appropriate)