https://github.com/transmission/transmission/blob/main/docs/Configuration-Files.md
use transmission-remote host:port -n user:pwd (while sudo -u transmission-user)
inspect torrent content: transmission-show file.torrent
add torrent transmission-remote localhost:9091 -n user:pwd -a file.torrent -w /folder
change location for all torrents:
transmission-remote -t all --find /path/where/torrents/are
start all torrents after directory fixed: transmission-remote -t all --start