@d0k3 if both writing permissions are locked, when you unlock sysnand writing, emunand writing also get unlocked as well, which may be unexpected behaviour ?
and likewise, if you have both permissions unlocked and decide to lock only emunand, it locks both writing permissions, unexpected behaviour ? other than that, i can't see much weird behaviour, as you said, the codebase is really stable (nearly as much as nintendo with all the stability updates).
....while typing i managed to crash the app, give me 5 minutes to find a reproductible method.
How i crashed GodMode9 : start the app from a9lh (on N3DS if relevant ?), with all keyfiles valid (if relevant?) and as soon as you are in, remove the SD card, select and enter the disk 0: (SDCARD) and in there, press X, it will crash.
(the crash was done on this commit : 2997b903e54fabf51b979c6c28519ca4e8b325ef )