Sega Saturn homebrew? I though that was an oxymoron. I love my Saturn like there is no tomorrow but it seemed like to me the homebrew sense was dead due to the whole system architecture. The only thing I hear about is the Z engine which is insane in its capabilities.

https://www.youtube.com/watch?v=JPYEiDwZbRc

It's a shame the scene is so quiet as the Saturn is a fascinating machine. If you use something like Jo Engine then it's not too difficult to get up and running. If you want to roll your own and still have something that performs it gets messy. Stuff like dealing with bus contention between the SH2s, the VDP access timing/slot system, that funky little DSP. You can see why it took so long to get decent libraries for it. It's still fun to see how far you can push the hardware.