Thanks for taking this on, joshuabg. I couldn't believe it when I saw this thread. I thought that 5.1 jumped the arm64 shark and we'd never see xposed for N9.
Anyway, I flashed on AICP 4/6 with FireIce K8.3, SELinux disabled and it booted just fine. Tried the following modules, and I see what rovo meant in his post above. It's really hit or miss with the modules just like the [SUPER ALPHA] xposed for 32 bit arm devices. Thanks again for rolling this out to test.
- YouTube Adaway - seemed to work, jumped to dozens of random videos and no ads
- Minmin Guard - app opened and seemed to operate normally but I think it may have blocked ads across the board without my telling it to do so. I think it also caused an XDA Free force close on opening that wouldn't go away
- Swype Tweaks - caused Swype to FC anytime the keyboard should have launched