fix: blender runtime crash - https://github.com/NixOS/nixpkgs/pull/340100

fix:  advanced-scene-switcher failed to compile, persist blender user directory

hosts/idols-ai/default.nix

@@ -11,6 +11,7 @@ in {
     ./netdev-mount.nix
     # Include the results of the hardware scan.
     ./hardware-configuration.nix
+    ./nvidia.nix
 
     ./impermanence.nix
     ./secureboot.nix
@@ -28,27 +29,6 @@ in {
   # conflict with feature: containerd-snapshotter
   # virtualisation.docker.storageDriver = "btrfs";
 
-  # for Nvidia GPU
-  services.xserver.videoDrivers = ["nvidia"]; # will install nvidia-vaapi-driver by default
-  hardware.nvidia = {
-    open = false;
-    # Optionally, you may need to select the appropriate driver version for your specific GPU.
-    # https://github.com/NixOS/nixpkgs/blob/nixos-unstable/pkgs/os-specific/linux/nvidia-x11/default.nix
-    # package = config.boot.kernelPackages.nvidiaPackages.stable;
-
-    # required by most wayland compositors!
-    modesetting.enable = true;
-    powerManagement.enable = true;
-  };
-  hardware.nvidia-container-toolkit.enable = true;
-  hardware.graphics = {
-    enable = true;
-    # needed by nvidia-docker
-    enable32Bit = true;
-  };
-  # https://nixos.org/manual/nixpkgs/unstable/#opt-cudaSupport
-  nixpkgs.config.cudaSupport = true;
-
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave

hosts/idols-ai/hardware-configuration.nix

@@ -25,7 +25,6 @@
   boot.initrd.kernelModules = [];
   boot.kernelModules = ["kvm-intel"]; # kvm virtualization support
   boot.extraModprobeConfig = "options kvm_intel nested=1"; # for intel cpu
-  boot.kernelParams = ["nvidia.NVreg_PreserveVideoMemoryAllocations=1"];
   boot.extraModulePackages = [];
   # clear /tmp on boot to get a stateless /tmp directory.
   boot.tmp.cleanOnBoot = true;

hosts/idols-ai/impermanence.nix

@@ -130,6 +130,9 @@
         # neovim plugins(wakatime & copilot)
         ".wakatime"
         ".config/github-copilot"
+
+        # others
+        ".config/blender"
       ];
       files = [
         ".wakatime.cfg"

hosts/idols-ai/nvidia.nix

@@ -0,0 +1,41 @@
+{pkgs-unstable, ...}: {
+  # ===============================================================================================
+  # for Nvidia GPU
+  # ===============================================================================================
+
+  boot.kernelParams = ["nvidia.NVreg_PreserveVideoMemoryAllocations=1"];
+  services.xserver.videoDrivers = ["nvidia"]; # will install nvidia-vaapi-driver by default
+  hardware.nvidia = {
+    open = false;
+    # Optionally, you may need to select the appropriate driver version for your specific GPU.
+    # https://github.com/NixOS/nixpkgs/blob/nixos-unstable/pkgs/os-specific/linux/nvidia-x11/default.nix
+    # package = config.boot.kernelPackages.nvidiaPackages.stable;
+
+    # required by most wayland compositors!
+    modesetting.enable = true;
+    powerManagement.enable = true;
+  };
+  hardware.nvidia-container-toolkit.enable = true;
+  hardware.graphics = {
+    enable = true;
+    # needed by nvidia-docker
+    enable32Bit = true;
+  };
+  # disable cudasupport before this issue get fixed:
+  # https://github.com/NixOS/nixpkgs/issues/338315
+  nixpkgs.config.cudaSupport = false;
+
+  nixpkgs.overlays = [
+    (_: super: {
+      blender = super.blender.override {
+        # https://nixos.org/manual/nixpkgs/unstable/#opt-cudaSupport
+        cudaSupport = true;
+        waylandSupport = true;
+      };
+
+      # ffmpeg-full = super.ffmpeg-full.override {
+      #   withNvcodec = true;
+      # };
+    })
+  ];
+}