https://emby.media/download.html
Auto-Start
Locate the autostart file:
~/.config/lxsession/LXDE-pi/autostart
If LXDE-pi is missing then copy it from:
/etc/xdg/lxsession/
Add this line to the end of the autostart file:
@emby-theater
Sorry about that. I posted the links to the snap packages by mistake. Here are the links to the RPI images:
arm64: https://github.com/MediaBrowser/emby-theater-electron/releases/download/3.0.15/emby-theater-rpi_3.0.15_arm64.img.xz
armhf: https://github.com/MediaBrowser/emby-theater-electron/releases/download/3.0.15/emby-theater-rpi_3.0.15_armhf.img.xz
Thanks.