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Help content can also be hosted on-premises by using the Save-Help cmdlet and distributing the content. On Windows systems, a group policy setting can be found that can control the default path for Update-Help as well. This setting is in Administrative Templates | Windows Components | System | Windows PowerShell. This setting is only valid for Windows PowerShell. Regardless of the edition, the Update-Help cmdlet supports the SourcePath parameter to specify from where the help content will be downloaded.

In order to provide your own help content properly, have a look at the PowerShell module, PlatyPS. This module makes it very easy to generate help content for your own modules, package it to the correct format, and much more.

PlatyPS supports markdown help, enabling you to write help content in a very easy way that feels more natural than creating large and complex MAML files.