diff --git a/hyprland.lua b/hyprland.lua
index cebba6e..755b0d4 100644
--- a/hyprland.lua
+++ b/hyprland.lua
@@ -25,6 +25,17 @@ require("hypr.autostart")
 -- Toggle config flags dynamically.
 require("default.hypr.toggles")
 
+-- Omarchy's default/hypr/nvidia.lua sees the RTX 5060 Ti and points VA-API
+-- and GLX at the NVIDIA driver, as if it drove the display. It is a
+-- Thunderbolt eGPU for CUDA only (see uwsm/env-hyprland for the EGL, Vulkan
+-- and KMS side). With LIBVA_DRIVER_NAME=nvidia every Chromium/Electron GPU process
+-- opens the first render node (the eGPU, renderD128) and nvidia-vaapi-driver
+-- brings up a CUDA context + NVDEC on it before the window even appears;
+-- launching LM Studio took the whole machine down with it. Last env wins,
+-- so this must come after the Omarchy defaults above.
+hl.env("LIBVA_DRIVER_NAME", "radeonsi")
+hl.env("__GLX_VENDOR_LIBRARY_NAME", "mesa")
+
 -- Add any other personal Hyprland configuration below.
 -- o.window("qemu", { workspace = "5" })