Fix waybar Nvidia module

modules/home/wms/programs/waybar/default.nix

@@ -61,6 +61,7 @@
         BC="${bc}/bin/bc"
         HEAD="${uutils-coreutils-noprefix}/bin/head"
         CAT="${uutils-coreutils-noprefix}/bin/cat"
+        NVIDIA="/run/current-system/sw/bin/nvidia-smi"
 
         # Detect the active GPU driver
         gpu_driver="$($LSPCI -k | $GREP -Eo 'in use: (nvidia|amdgpu)' | $AWK '{print $3}')"
@@ -72,7 +73,7 @@
         
         # Get VRAM usage in MB
         if [[ "$gpu_driver" == "nvidia" ]]; then
-          vram_usage_mb="$(nvidia-smi --query-gpu=memory.used --format=csv,noheader,nounits | $HEAD -n1)"
+          vram_usage_mb="$($NVIDIA --query-gpu=memory.used --format=csv,noheader,nounits | $HEAD -n1)"
         elif [[ "$gpu_driver" == "amdgpu" ]]; then
           vram_bytes="$($CAT /sys/class/drm/card*/device/mem_info_vram_used 2>/dev/null | $HEAD -n1)"
           vram_usage_mb="$($BC <<< "$vram_bytes / 1024 / 1024")"

modules/system/settings/nix/channels/default.nix

@@ -0,0 +1,11 @@
+{ config, pkgs, stable, unstable, ... }:
+with pkgs; {
+  _module.args.pkgsStable = import stable {
+    inherit (stdenv.hostPlatform) system;
+    inherit (config.nixpkgs) config;
+  };
+  _module.args.pkgsUnstable = import unstable {
+    inherit (stdenv.hostPlatform) system;
+    inherit (config.nixpkgs) config;
+  };
+}

modules/system/settings/nix/default.nix

@@ -1,6 +1,7 @@
 { pkgs, ... }:
 {
   imports = [
+    ./channels
     ./gc
     ./unfree
   ];