Top 20 NuGet envvar Packages

Environment variables configuration provider implementation for Microsoft.Extensions.Configuration.
Injects values into config files directly or via environment variables. Can inject app settings, connection strings, or WCF client endpoints.
F# Libary for managing configuration data from environment variables and application config in a type-safe way
Library for working with Environment Variables which helps with testing.
A package to help parsing and injecting .env file into environment variables.
Environment variables configuration provider implementation for Microsoft.Extensions.Configuration.
Environment variables configuration provider implementation for Ms.Extensions.Configuration.