Problems on (Ubuntu) Linux

> sudo npm install -g mpv-remote

gives:

```
[sudo] password for frank:
sudo: npm: command not found
```

Without sudo it works.

Now the real problem, mpv started from the gnome shell it works fine, but when I start mpv from a terminal, there are 2 mpv processes and 2 node processes listed in System Monitor! I verified that this is caused by mpv-remote, maybe something went wrong with the setup. The app isn't usable for me until this is solved.