modrinth-enhanced, modrinth-enhanced-bin: preload vblank shim for the full refresh rate on nvidia

modrinth-enhanced-bin/modrinth-enhanced.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+# Starts Modrinth Enhanced with the vblank shim preloaded (see vblank-shim.c).
+# With the NVIDIA driver the shim only lifts the frame rate under X11, so it is
+# asked to keep GTK on X11 there. MODRINTH_VBLANK_SHIM=0 starts the app without.
+if [ "${MODRINTH_VBLANK_SHIM:-1}" != 0 ]; then
+  [ -d /sys/module/nvidia_drm ] && export VBLANK_SHIM_GDK_BACKEND=x11
+  export LD_PRELOAD="/usr/lib/modrinth-enhanced/libwebkit-vblank-shim.so${LD_PRELOAD:+:$LD_PRELOAD}"
+fi
+exec /usr/lib/modrinth-enhanced/ModrinthEnhanced "$@"