transmission-dir-watcher.service

[Unit]
Description=Watch directory for torrent files and add to Transmission
After=network.target

[Service]
Type=simple
Environment=TRANSMISSION_RPC_PASSWORD=your_password
ExecStart=/home/your_username/transmission-watch-env/bin/python /home/your_username/watch_torrents.py --watch-dir /path/to/watch/folder --download-basedir /path/to/base/download/dir
WorkingDirectory=/home/your_username
Restart=on-failure

[Install]
WantedBy=default.target