I’ve managed to execute the following action call to the Android TV Remote integration for my Chromecast. It launches Jellyfin just fine.
action: remote.turn_on
metadata: {}
target:
entity_id: remote.tv
data:
activity: org.jellyfin.androidtv
However, because I have configured Jellyfin to present the “Who is watching?” screen on start up, I have to pick up the remote and manually choose the user. My ultimate goal is to ask my VPE to launch Jellyfin and just authenticate as me if I say something like “Launch Jellyfin as John.”