These are notes for setting up a Raspberry Pi 4 single board computer for pro audio work. Specifically for running SuperCollider programs for interactive installations. I used Raspbian Lite for this, since my intention is to run the Raspberry Pi in headless mode, meaning using no display and no desktop environment (to save resources). It is presumed that you have installed Raspbian on an SD card, with ssh enabled (allowing you to log in to the pi over the network and execute commands using a terminal), and that you are logged in.
In this tutorial, I will cover how to install and setup SoX on android devices using Termux. Termux is a free “Android terminal emulator and Linux environment app that works directly with no rooting or setup required”. Basically it is a command line interface for your Android device and works like a small linux distribution. It even includes a package management system. And if you get something like an OTG-dongle you can even connect a keyboard and/or a class compliant sound interface.