Hi!
Have seen a lot of posts about issues with getting the Plexamp headless running on the Raspberry Pi! I have written a bash that does the full installation on a fresh setup of Raspbian OS 64-bit! Only thing you need is the post-login on web.
Script now also supports Trixie (updated config location: /boot/firmware/usercfg.txt)!
Follow the guide here:
bash-plexamp-installer
…and let me know any issues/improvements/questions you might have!
Have fun!
