posted by wap, platform: MAC OS X
https://lightgungamer.com/how-to-install-mednafen/

这个链接里面的内容看起来也不适用于mac系统啊，mednafen.cfg这个文件并不在安装目录下。

To configure Mednafen, you need to edit the mednafen.cfg file. You can use any text editor to do this. The configuration file is well-documented, so you can easily find the settings you need to change.