###### About

<https://nodejs.org/en>

###### Procedure

1. Sign in as root user

2. Run `apt install nodejs`

    !!! info "Note"

        This command may install an older version of Node.

3. Run `node --version` to verify the installed version of Node.js

4. Run `apt install npm` to install the Node package manager

5. Run `npm install -g n` to *globally* install the `n` Node version manager

6. Run `n latest` to fetch and install the latest version of Node.js

###### Optional

1. Install the PM2 daemon process manager globally via:

    ```
    npm install -g pm2
    ```

    This package allows daemonizing Node projects or shell scripts without the need to learn System V run levels, "init," or systemd services. For example, if we have a shell script that spawns a Java or Python-written server, you can use PM2 to host it:

    ```sh title="/root/myapp/myapp.sh"
    #!/bin/bash

    cd /root/myapp
    source ./venv/bin/activate
    python3 -u myapp.py
    ```

    1. Run `cd /root/myapp`

    2. Run `pm2 start myapp.sh` to daemonize `myapp.sh` with PM2

    3. Run `pm2 startup` to enable running PM2 at system startup

    4. Run `pm2 save` to save the current process list

    To view a list of all daemonized processes, run `pm2 list`. If your application crashes, PM2 will automatically restart your process, but may fail if the application is crashing in rapid succession. To view why, run `pm2 log myapp`.

###### About PM2

<https://pm2.keymetrics.io/>