It's good to see a nice easy script to do this. I can confirm that mounting the SD card as read-only works great. For a couple years, I used a Raspberry Pi as a

It's good to see a nice easy script to do this. I can confirm that mounting the SD card as read-only works great. For a couple years, I used a Raspberry Pi as an AirPlay receiver hooked to a set of speakers, and whenever I was done listening, simply turned off the power. I had / mounted read-only and never had SD card corruption.