So one of the top emulators out there is for sure RetroArch. And for some time we have been using old or custom builds. This was due to them loosing their iOS developer. Now it looks like this has changed. We now have a Cydia repo for RetroArch that has nightly builds updated to it. To be honest it’s almost hourly builds in some cases. I literally had 4 updates for RetroArch yesterday. So this is great news. This means they are working hard to get to a stable version. 

So to add the Cydia repo just copy and paste the below URL into your Cydia sources. 

http://buildbot.libretro.com/repo/cydia/

Just remember that you will be getting multiple updates from this repo in the day. And it’s best to just update it once a day to help save data. Enjoy!