Hate to be the guy that says "why don't you just do
<different setup>
?" But unless you are on solar, I wouldn't worry about power consumption. Jellyfin is a resource-intensive program and you'll have a better experience with a dedicated graphics card (as recommended in the docs). I also recommend SATA or PCIe storage I/O instead of USB.
Isn't harvard a private school? Are you saying my taxes help rich kids go to college?