Add a web browser tab.

shot.sh

@@ -39,6 +39,11 @@ export WLR_LIBINPUT_NO_DEVICES=1
 export WLR_RENDERER=pixman
 export LIBGL_ALWAYS_SOFTWARE=1
 export GSK_RENDERER=cairo
+
+# WebKit's web process renders through mesa, which the dev shell has already
+# pointed at its own copy; here we only force that mesa down to its software
+# rasterizer, so a web pane paints the same way with or without a GPU.
+export GALLIUM_DRIVER=llvmpipe
 export XDG_RUNTIME_DIR="${XDG_RUNTIME_DIR:-/run/user/$(id -u)}"
 export SWAYSOCK="$RUNDIR/sway.sock"
 # Don't let the app fall back to the real session.