diff --git a/.chezmoiignore.tmpl b/.chezmoiignore.tmpl
index 40a432f..0fcaa54 100644
--- a/.chezmoiignore.tmpl
+++ b/.chezmoiignore.tmpl
@@ -37,6 +37,8 @@ dist
 .config/niri/**
 .config/hypr
 .config/hypr/**
+.config/uwsm
+.config/uwsm/**
 .config/noctalia
 .config/noctalia/**
 .config/niri-dynamic-workspaces
diff --git a/dot_config/uwsm/env-hyprland b/dot_config/uwsm/env-hyprland
new file mode 100644
index 0000000..d3ddded
--- /dev/null
+++ b/dot_config/uwsm/env-hyprland
@@ -0,0 +1,9 @@
+# Sourced by uwsm before Hyprland starts.
+# Keep Hyprland on the AMD iGPU (Radeon 8060S, PCI c4:00.0). The Thunderbolt
+# eGPU (RTX 5060 Ti) drives no displays and is for compute only; without this,
+# aquamarine opens it as a second KMS device. cardN numbering shifts with eGPU
+# hotplug timing, so resolve the stable by-path link. Left unset if missing so
+# Hyprland still falls back to auto-detection.
+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