The Haplo Platform is a multi-tenant application server, with applications implemented through plugins. There is an administrative user interface for setting up applications, although more complex applications tend to be configured with code in a plugin.
How you run an instance of the Haplo Platform server depends on your intended use.
Developing the platform
If you want to modify the platform itself, you can run a development build which has a slightly different configuration, and includes platform development only functionality such as automatic reloading of platform code.