[Jackaudio] Using Jackd with an AudioInjector Octo

Hi all - I hope I'm in the right place. I've tried a few different forums and message boards now with no response. I am attempting to run an AudioInjector Octo (a simple 8-channel audio hardware card attached to the GPIO) on a Raspberry Pi 4, running the Raspberry Lite OS. My understanding is that ALSA manages AudioInjector - but that I also need jackd to send audio from my software (SuperCollider) to ALSA. While ALSA seems to read the AudioInjector without trouble, I seemingly cannot get jackd to boot. I am new to all of this, so there may be many things I have not yet tried. Namely, the following line of code causes my terminal prompt to freeze: jackd -d alsa -r 44100 -P hw:2 Any pointers would be a great help. Thanks!