jdm 0 Junior Poster in Training

I'm almost done with college and I want to work on a side project that I could use to show case my skills. I'm looking for something that I can combine a bunch of different aspect into one. I know this will be a big project and won't be able to do all at once, but I want something that I can combine linux/bash, database (postgres/mysql), php, sysadmin skill sets, and maybe c++/networking.

Any ideas would be greatly appreciated.

Sincerely yours;

jdm