Install via nuget package manager:
PM> Install-Package EnvironmentVariableProvider
To get started, just instantiate the type provider and pass in an environment variable flag as the parameter.
open FSharp.Environment.TypeProviders
open FSharp.Environment
type EnvVars = EnvironmentVariableProvider< target = EnvironmentTarget.Machine >
let envVars = EnvVars()
The variable envVars now contains the list of env variables.