The indented string ('''...''') included newlines + spaces in the systemd
unit file, which systemd rejected with 'expected entry key name but got /'.
Use a plain double-quoted string instead so ExecStart stays on one line.
The indented string ('''...''') included newlines + spaces in the systemd
unit file, which systemd rejected with 'expected entry key name but got /'.
Use a plain double-quoted string instead so ExecStart stays on one line.