Those are all good questions! - "Controller" is just for the sake if this article, to distinguish the part that this project (or any other power-user browser f

Those are all good questions! - "Controller" is just for the sake if this article, to distinguish the part that this project (or any other power-user browser for that matter) is about. It's everything that it not the GUI or the renderer. - XML-RPC: we were asking ourselves the same question, and the answer could only come out of real-world use. The happy result: no, it's not gonna be a bottlenext, it's very smooth! In the end, XML-RPC is only a medium to send "GUI"-related queries, it's never a tight loop or anything. - The user namespace: this is only for the Guix pack. It allows the executable to do some filesystem name translations so that it can find it's own executables and libraries. If you are worried this would be an issue, you can simply extract the archive to `/`, it will only use two folders: `/bin` and `/gnu/store`.