absolutely! wallet is already built-in at this time. When users create an account on ZS they're assigned a ZS wallet address and it's put into their profile information so they can be instantly zapped. It's the same wallet from where the cost to stream is deducted and users can deposit / withdraw from that wallet at any time.
It's also one of the few projects that cater to the NIP standard since you can drop almost any nostr event ID into chat (or add them to the cards below your stream) and they'll render the content which can be then zapped, liked or shared directly from the chat. Also supports the NIPs for badges and emotes.
"Living the NIP standard", one NIP at a time