Connect Reelhost to Jellyfin
The first time, People & folders asks you to sign in once with the account you manage Jellyfin with (an administrator). Reelhost uses it to make a key named Reelhost, then forgets the password. The key is stored encrypted on this computer. Disconnect, at the bottom of the page, stops Reelhost using it.
If Jellyfin's first-run setup isn't done, you see Finish setting up Jellyfin instead: your name, a password of at least 6 characters and, optionally, a name for the server. Your password goes to Jellyfin only.
Free TV, recordings and Quick Connect need this connection too.