To configure the store:
IMySettings settings = new ConfigurationBuilder<IMySettings>()
.UseEnvironmentVariables()
.Build();This store works with system environment variables, the ones you get on Windows cmd.exe by typing set or in PowerShell by typing Get-ChildItem Env: or on Unix base systems env.
The store supports reading and writing environment variables.
Note: Some systems like Visual Studio Team System Build replace dots (.) with underscores (_) when defining a variable. To overcome this the store will try to read the variable in both variants.