> GL is only a drawing API. Then you need to handle fonts (layout, rendering) Exactly. It should suffice. Render text on a texture using FreeType or, if you f

> GL is only a drawing API. Then you need to handle fonts (layout, rendering) Exactly. It should suffice. Render text on a texture using FreeType or, if you feel fancy, using HarfBuzz. > input and focus (including compose and input methods), actual window management, No, not for a circular menu which is 100% mouse-driven. It's much closer to a game than to a desktop app. It should be about as complex in its functionality as dmenu, driven by config files. An optional nice GUI configurator for it could be a self-contained web app. > They're just more avoidable. Exactly: it's harder to access them from non-programmatic context, e.g. from a maliciously crafted menu item or .desktop file. Or so I hope at least.