Hi Keqin,
By the way, are there any open source projects about Genode which I can join in? (Like "Google Summer of Code")
this year, we haven't applied as a mentoring organization for GSoC. We tried last year, but with no success. It's good to know that there is interest in that. So we may consider applying next time.
The Genode development is generally open for contributions. If you like to join in, revisiting the topics in the issue tracker would be a good start:
https://github.com/genodelabs/genode/issues?direction=desc&sort=updated&...
For more elaborative project ideas, the road map and the challenges pages give an overview of the directions the project is heading to:
http://genode.org/about/road-map http://genode.org/about/challenges
The scope of work in the project is broad, reaching from kernel-level work, over device drivers, porting of libraries and 3rd-party programs, to the development of high-level Genode components and applications. If you tell me your particular fields of interest, I can point you to the topics most closely related to them.
Cheers Norman