Tanuki3DS v0.4.1 is released. Tanuki3DS is a 3DS emulator for MacOS and Linux written in C which aims to be simple, fast, and compatible. Currently it can play a handful of games at full speed and supports some nice features like controller support and video upscaling.

Tanuki3DS Changelog:
FMV playback support (for prerendered cutscenes, etc)
New screen layout options
New postprocessing filter options including Sharp Bilinear Filter
Motion control support when using a controller with motion input
Ignore memory errors setting that can potentially fix some crashes
JIT Config options including disabling block linking (fixes Rayman Origins)
Better error reporting
Game region auto detection
Menu option for loading the original versions of shared font and mii data files (can be dumped from a real 3DS using the dumper tool in the repo)
Various bug fixes fixing games including Ace Attorney Dual Destinies, Super Smash Bros, Fire Emblem Fates

Download: Tanuki3DS v0.4.1
Source: Here