I would run it on a standalone PI and leave the miner SBC to do what it does.
Installing software on your Apollo will more often than not require you to update your existing packages using
apt upgrade, which is heavily discouraged by jstefanop to avoid bricking the miner.
Known Issues- Using the built in system update function will brick your system DO NOT UPDATE USING THE SYSTEM UPDATE we will periodically post updated images that have the latest system updates
FAQQ: I updated the system and now my Apollo won't boot
A: DO NOT UPDATE THE OS THROUGH THE SYSTEM UPDATE PROMPTS Even though the Apollo is a full linux desktop, its still an embedded system with multiple system level changes to make it work with our proprietary hardware attached to it. If you do a system level OS update these will be whipped and you will end up with a bricked system, requiring a full SD card reflash using the stock image. Any system/kernel level updates will issue here with updated SD card images.
If you want to install more software on it, I'd recommend installing a whole new OS on a new microSD (keep the original one for backup), that way you can also experiment more freely without fear of breaking anything in general.
Boot from microSD is honestly one of the greatest features of these single board computers, since it allows to do these types of experiments easily.
My guide explains how to install everything that comes with Apollo except the web GUI, which I'm still working on, plus Lightning and Electrum.
[Guide] Futurebit Apollo BTC Custom Linux Install - Base