You want to use Jupyter remotely. X11 forwarding is too slow for this.
SSH port forwarding!
| $ cd ~ | |
| $ sudo curl -sS https://getcomposer.org/installer | sudo php | |
| $ sudo mv composer.phar /usr/local/bin/composer | |
| $ sudo ln -s /usr/local/bin/composer /usr/bin/composer | |
| then you can run | |
| $ sudo composer install |