[1g0rb]

I see no one mentioned luakit (https://luakit.github.io/). From the site: "Luakit is a highly configurable browser framework based on the WebKit web content engine and the GTK+ toolkit. It is very fast, extensible with Lua, and licensed under the GNU GPLv3 license. It is primarily targeted at power users, developers and anyone who wants to have fine-grained control over their web browser’s behaviour and interface."

[Ambrevar]

Luakit is probably what's closest to Next in terms of design.

The important differences, in my opinion:

- Next is not bound to WebKitGTK+, so unlike Luakit it can run on different platforms with different engines.

- Next uses Lisp, which is I believe much more powerful, both for large scale development and hackability.

[nmg]

I love LuaKit. Zero chrome/bezel on the browser windows - turn off window decoration and the web content is just a (fully) resizeable rect in your desktop layout. The vim-style keyboard controls are a plus (for me, anyway).