1 files changed, 36 insertions, 26 deletions
diff --git a/nixpkgs/nixos/doc/manual/configuration/gpu-accel.chapter.md b/nixpkgs/nixos/doc/manual/configuration/gpu-accel.chapter.md
index aa63aec61669..3b98bdd97c68 100644
--- a/nixpkgs/nixos/doc/manual/configuration/gpu-accel.chapter.md
+++ b/nixpkgs/nixos/doc/manual/configuration/gpu-accel.chapter.md
@@ -55,9 +55,11 @@ supported through the rocmPackages.clr.icd package. Adding this package to
 enables OpenCL support:
 
 ```nix
-hardware.opengl.extraPackages = [
-  rocmPackages.clr.icd
-];
+{
+  hardware.opengl.extraPackages = [
+    rocmPackages.clr.icd
+  ];
+}
 ```
 
 ### Intel {#sec-gpu-accel-opencl-intel}
@@ -74,9 +76,11 @@ to enable OpenCL support. For example, for Gen8 and later GPUs, the following
 configuration can be used:
 
 ```nix
-hardware.opengl.extraPackages = [
-  intel-compute-runtime
-];
+{
+  hardware.opengl.extraPackages = [
+    intel-compute-runtime
+  ];
+}
 ```
 
 ## Vulkan {#sec-gpu-accel-vulkan}
@@ -141,20 +145,22 @@ makes amdvlk the default driver and hides radv and lavapipe from the device list
 A specific driver can be forced as follows:
 
 ```nix
-hardware.opengl.extraPackages = [
-  pkgs.amdvlk
-];
-
-# To enable Vulkan support for 32-bit applications, also add:
-hardware.opengl.extraPackages32 = [
-  pkgs.driversi686Linux.amdvlk
-];
-
-# Force radv
-environment.variables.AMD_VULKAN_ICD = "RADV";
-# Or
-environment.variables.VK_ICD_FILENAMES =
-  "/run/opengl-driver/share/vulkan/icd.d/radeon_icd.x86_64.json";
+{
+  hardware.opengl.extraPackages = [
+    pkgs.amdvlk
+  ];
+
+  # To enable Vulkan support for 32-bit applications, also add:
+  hardware.opengl.extraPackages32 = [
+    pkgs.driversi686Linux.amdvlk
+  ];
+
+  # Force radv
+  environment.variables.AMD_VULKAN_ICD = "RADV";
+  # Or
+  environment.variables.VK_ICD_FILENAMES =
+    "/run/opengl-driver/share/vulkan/icd.d/radeon_icd.x86_64.json";
+}
 ```
 
 ## VA-API {#sec-gpu-accel-va-api}
@@ -178,17 +184,21 @@ $ nix-shell -p libva-utils --run vainfo
 Modern Intel GPUs use the iHD driver, which can be installed with:
 
 ```nix
-hardware.opengl.extraPackages = [
-  intel-media-driver
-];
+{
+  hardware.opengl.extraPackages = [
+    intel-media-driver
+  ];
+}
 ```
 
 Older Intel GPUs use the i965 driver, which can be installed with:
 
 ```nix
-hardware.opengl.extraPackages = [
-  intel-vaapi-driver
-];
+{
+  hardware.opengl.extraPackages = [
+    intel-vaapi-driver
+  ];
+}
 ```
 
 ## Common issues {#sec-gpu-accel-common-issues}