Just (finally!) used waithax to install arm9hax. It took the better part of my afternoon, but it worked perfectly, and I can't wait to get started. Now that I have arm9hax can I still use all the old homebrew that I was running with Ninjahax, or should I install new versions? For example, on the retroarch website I had been using the .3dsx files. Should I use those or switch to cia? Is there anything that I need to do to get emulators to take advantage of all the extra power they now have at their disposal?