NetFoundry is built on Ziti. Ziti is open-source software for building programmable, zero-trust networks. You can use Ziti “endpoints” with your NetFoundry network. For example, you can embed Ziti in your app with the endpoint SDK so it can participate in a NetFoundry network directly without any external software or gateways. In that case your app will communicate with the Ziti fabric hosted by NetFoundry through the built-in Ziti libraries. If your app is a service this means it can be reached anywhere, from anywhere, by any endpoint you allow without a static public IP address. You Zitified service is invisible except to your allowed endpoints.
Visit the Ziti web site to learn more about Ziti.
Read the overview to understand how Ziti works with NetFoundry.