This RFC description how communication between tapplet and wallet daemon could look like in Tari Universe.
Communication between web app and wallet daemon normally requires webRTC connection. In out case this not necessary as both wallet daemon and tapplet are on same host machine. This requires another way of communication between tapplet and wallet daemon.
Im not sure about Metamask snap provider but weksocket and Tari Universe provider are similar but there are some major differences. The websocket must first obtain webRTC connection while the other doesn't.
This RFC description how communication between tapplet and wallet daemon could look like in Tari Universe.
Communication between web app and wallet daemon normally requires webRTC connection. In out case this not necessary as both wallet daemon and tapplet are on same host machine. This requires another way of communication between tapplet and wallet daemon.