I tried to do a google search but couldn’t find any related to max2play hope someone can help point me to a right direction. Is it possible for me to created a power button that safely turnoff the pi when I have the hifiberry mounted ontop? I was able to search for a power button but it need the GPIO interface but I mounted the hifi berry so I don’t know what is the other way. There is also another tutorial on instructable but also utilizing the GPIO interface.