My curiosity is piqued by the mention on the web page: I no longer use X11. And then proceeds to present his own framebuffer and rendering applications. I

My curiosity is piqued by the mention on the web page: I no longer use X11. And then proceeds to present his own framebuffer and rendering applications. I presume in order to show the PDFs and such that his processor creates. I'm just curious about his operating environment and workflow that led to this, and, perhaps, what he is doing today.