To support an AI demo I'm (slowly) building, I resuscitated out some old GUI library (linux,osx) I was working on 5 years ago (built on top of glfw3 and nanovg). While, all things considered, it's a pretty tangential effort, it's pretty fun to imagine and build GUI components from scratch 😍 It also mix well with the rest of my code base, which is a huge plus in my books.