Framer is an experimental application which emulates desktop-like UI environment.
You can find a live demo here 👉 app.andrej.xyz
Framer is consisted of movable frames which can be docked (minimized). Inside each movable frame there is a widget.
Widgets emulate desktop applications, but really they are just DOM nodes, such as a textarea, iframe, ReactElement etc.
Also, framer has a DOCK which is a movable pane,
that contains buttons of the active widgets. The dock is similar to the
Start menu from Windows or the Dock from MacOS.