For the true nerds in the room: Hands On With Microsoft Dynamics GP 2015 RTM: Installing GP PowerShell
Hands On With Microsoft Dynamics GP 2015 RTM: Installing GP PowerShell | azurecurve
Install, Upgrade & AdminDevelopment & IntegrationMicrosoft & the GP EcosystemGP 2015
Archived post from 2015. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.