Update

options.conf.d/desktop.conf

@@ -162,5 +162,3 @@ x11-dri/mesa opencl llvm
 # because of dconf-editor
 gnome-desktop/dconf vapi
 
-# app-text/calibre
-dev-lang/python:3.6 readline

package_unmask.conf

@@ -40,6 +40,8 @@ sci-apps/z3[~scm]
 dev-lang/fstar[~scm]
 dev-lang/fsharp[~scm]
 x11-drivers/xf86-video-wayland[~scm]
+wayland-apps/Waybar[~scm]
+x11-misc/polybar[~scm]
 
 # valyriatear
 media-libs/SDL_ttf:2