User Interface
On the normal web, a user might visit https://gmail.com/, their browser
will download the Gmail user interface which then runs in their browser and connects back to the Gmail servers.
On Freenet the user interface is downloaded from a Freenet contract, and it interacts with contracts and delegates by sending messages through the Freenet core.
These UIs are built using web technologies such as HTML, CSS, and JavaScript, and are distributed over Freenet and run in a web browser. UIs can create, retrieve, and update contracts through a WebSocket connection to the local Freenet peer, as well as communicate with delegates.
Because UIs run in a web browser, they can be built using any web framework, such as React, Angular, Vue.js, Bootstrap, and so on.