On the download page, you will find tabs for both automated and manual installation.
The automatic installers give you access to FRAM, the FusionReactor administrator has built-in functionality to configure your application server for you, as well as allow you to start or stop your application server from the FusionReactor user interface. Note that this process cannot be scripted.
The manual installation method involves downloading the jar files and extension files for our debugger then manually configuring the JVM arguments for your application server. This process is relatively straightforward and allows for instances to be installed via scripting or automated deployment tools such as Docker.
You can find a more detailed comparison here: https://docs2.fusion-reactor.com/Installation/Automatic-vs-Manual-Installation/