$ cd /var/www/emoncms/Modules
$ git clone https://github.com/emoncms/dashboard
$ sudo apt-get update
$ sudo apt-get install php-xml php-mbstring # or php8.x-xml php8.x-mbstring to match the running PHP version
Login to Emoncms then run: Admin > Check for database updates
$ cd /var/www/emoncms/Modules/dashboard
$ git pull origin master
Drag'n drop visual custom dashboard builder for Emoncms
Credit to smitt1979 for the second excellent dashboard example. See Emoncms dashboard showcase forum for more examples.