[Programs/Nvtop] refactor to intelligently enable the required backends

hardware/amd/default.nix

@@ -27,7 +27,10 @@ in {
   
   config = mkIf cfg.enable {
 
-    aviallon.programs.nvtop.enable = true;
+    aviallon.programs.nvtop = {
+      enable = true;
+      backend = [ "amd" ];
+    };
 
     hardware.opengl = {
       enable = true;

hardware/intel/default.nix

@@ -17,7 +17,10 @@ in
   ];
   
   config = mkIf cfg.enable {
-    aviallon.programs.nvtop.enable = true;
+    aviallon.programs.nvtop = {
+      enable = true;
+      backend = [ "intel" ];
+    };
   
     boot.initrd.kernelModules = [ "i915" ];
     hardware.opengl = {

hardware/nvidia/default.nix

@@ -27,7 +27,9 @@ in {
   config = mkIf cfg.enable {
     hardware.opengl.driSupport32Bit = true;
 
-    aviallon.programs.nvtop.enable = true;
+    aviallon.programs.nvtop = {
+      enable = true;
+    };
 
     aviallon.hardware.nvidia.useProprietary = mkForce ( cfg.variant == "proprietary" );
   };

hardware/nvidia/proprietary.nix

@@ -103,7 +103,7 @@ in {
       versionOlder hardwareCfg.nvidia.package.version "490.29.05" # https://www.nvidia.com/download/driverResults.aspx/181159/en-us/
     );
 
-    aviallon.programs.nvtop.nvidia = true;
+    aviallon.programs.nvtop.backend = [ "nvidia" ];
 
     boot.extraModprobeConfig = ''
       options nvidia NVreg_RegistryDwords="${concatStringsSep ";" cfg.proprietary.registryDwords}"
@@ -152,10 +152,6 @@ in {
       nvidia-vaapi-driver
     ];
 
-    environment.systemPackages = with pkgs; [
-      nvtop
-    ];
-
     # See documentation here: https://download.nvidia.com/XFree86/Linux-x86_64/510.60.02/README/openglenvvariables.html
     environment.variables = {
       "__GL_YIELD" = "USLEEP"; # use usleep(0) instead of sched_yield() -> better performance in most cases

programs/nvtop.nix

@@ -5,6 +5,12 @@ let
 in {
   options.aviallon.programs.nvtop = {
     enable = mkEnableOption "nvtop";
+    backend = mkOption {
+      description = "Which backend to enable";
+      type = with types; listOf (enum [ "nvidia" "amd" "intel" "panthor" "panfrost" "msm" ]);
+      default = [ "amd" ];
+    };
+    
     nvidia = mkEnableOption "Nvidia GPU with proprietary drivers is used";
     package = mkOption {
       internal = true;
@@ -16,7 +22,11 @@ in {
 
   config = mkIf cfg.enable {
     # If an Nvidia GPU is used, use the full nvtop package
-    aviallon.programs.nvtop.package = mkIf cfg.nvidia pkgs.nvtop;
+    aviallon.programs.nvtop.package = mkDefault (
+      if (length cfg.backend > 1) then
+        pkgs.nvtopPackages.full
+      else pkgs.nvtopPackages.${elemAt cfg.backend 0}
+    );
 
     environment.systemPackages = [
       cfg.package