Can anyone point me to a tutorial on how to set up autobooting with Cakes?
Here's how I set up both my O3DS and N3DS:
1. Install MenuHax
2. Open the menuhax robinpayload on the root of your SD card, search for boot.3dsx and change it in both places to ctbm.3dsx
3. Get CtrBootManager, copy its 3dsx file to the root of your SD card and rename it to ctbm.3dsx
4. Configure CtrBM to load Cake.dat after a 2 or 3 second delay copying the configuration from rxTools. Same offset etc.
5. Turn on your 3DS and wait for the Cakes menu to appear, configure it if you haven't already, setting autoboot enabled.
6. Done!
Optionally you can set up any number of other 3dsx files in CtrBM including HBL, rxTools (xorpads generation), Decrypt9 (alternate xorpads gen iirc), etc...