feat(config): add projects-sync systemd service and timer

dot_config/uwsm/env-hyprland

@@ -7,3 +7,10 @@
 igpu=$(readlink -f /dev/dri/by-path/pci-0000:c4:00.0-card 2>/dev/null)
 [ -e "$igpu" ] && export AQ_DRM_DEVICES="$igpu"
 unset igpu
+
+# EGL through Mesa only, for Hyprland and every app in the session. glvnd
+# otherwise tries NVIDIA's vendor first (10_nvidia.json sorts before
+# 50_mesa.json), so the compositor and GL apps open /dev/nvidiactl even
+# though they render on the iGPU; when the eGPU drops off the bus, they
+# would be holding it. CUDA does not go through EGL and is unaffected.
+export __EGL_VENDOR_LIBRARY_FILENAMES=/usr/share/glvnd/egl_vendor.d/50_mesa.json