Hi, by installing Enterprise Desktop on the device you want to access, you get unlimited connections to the physical desktop available there. This means that unlimited users can connect to that computer and they will see, and share, the same desktop. The Enterprise also supports access via web, users can also connect by using their browser.
Aternatively, users that want to connect can install either the free edition of NoMachine or the Enterprise Client package on their own devices.
Enterprise Desktop is available in evaluation for 30 days here: https://www.nomachine.com/product&p=NoMachine%20Enterprise%20Desktop.
In order to get started with browser-based access, please take a look at the guide here:
https://www.nomachine.com/getting-started-with-web-based-remote-access
You might also want to take a look at this article:
Differences between NoMachine Enterprise Desktop and the free to download NoMachine package
https://knowledgebase.nomachine.com/AR07L00808