The goal now isn't a browser but a framework that is easily modified, well documented and can be embedded in other projects.
We realize how much work a real browser is but if you look at the source of WebKit, blink or servo, it's a huge mess. We're trying to be low dependency and multiple interface, perfect for scripting.
Our web page targets are simple just 4chan/g and stackoverflow. But we also have plans where this framework can also be used for document viewing and editing.
I'm thinking of the project as more of an electron replacement. But we'll see where the future takes us.
Tabbed browsing by the end of this month is on track.
I'd love to see that. I think an Electron replacement would be really good.