I’m not sure if this is what you’re referring to, but within Mautic you can use a command which wipes the database and installs sample data.
This is the command - note that it wipes the entire database. DO NOT use in production
bin/console d:f:l
(short for doctrine:fixtures:load).
It’s what we use for testing Mautic when you use Gitpod - it’s going to set you up with about 50 contacts, a bunch of segments, some emails and landing pages etc. The default login is admin/mautic and there’s a restricted access user of sales/mautic.
It’s useful just for getting a feel for things, but of course it would be sensible if you’re demonstrating Mautic, to build up your own sample data / segments / emails etc.
that sounds pretty much like what the package was when I had used it before, except if I remember correctly it was installed through the Mautic Admin dashboard, not the command line.
and again, the purpose of this new test server install is to give my team a chance to learn & play with Mautic 4 ahead of the next release.