Add custom packages

Enable custom packages in the config and test this out with zluda
(downgrading rocm from 6 to 5!).
The packages are then made available through overlays (see next commit
with big overhaul).

flake.nix

@@ -195,7 +195,7 @@
         };
       });
 
-    packages = import ./packages nixpkgs.legacyPackages.${system};
+    packages.${system} = import ./pkgs nixpkgs.legacyPackages.${system};
 
     devShells.${system}.default = pkgs.mkShell {
       buildInputs = with pkgs; [

modules/nixos/environment/amd/default.nix

@@ -1,8 +1,7 @@
-{
-  pkgs,
-  config,
-  lib,
-  ...
+{ pkgs
+, config
+, lib
+, ...
 }: {
   imports = [
     ./rocm.nix
@@ -14,10 +13,10 @@
   config = lib.mkIf config.amd.enable {
     amd = {
       rocm.enable = lib.mkDefault false;
-      zluda.enable = lib.mkDefault false;
+      zluda.enable = lib.mkDefault true;
     };
 
-    services.xserver.videoDrivers = ["amdgpu"];
+    services.xserver.videoDrivers = [ "amdgpu" ];
 
     environment.systemPackages = with pkgs; [
       amdgpu_top

modules/nixos/environment/amd/zluda.nix

@@ -8,7 +8,7 @@
 
   config = lib.mkIf config.amd.zluda.enable {
     environment.systemPackages = with pkgs; [
-      zluda
+      zluda-rocm5
     ];
 
     # systemd.tmpfiles.rules = let

pkgs/default.nix

@@ -0,0 +1,3 @@
+pkgs: {
+  zluda-rocm5 = pkgs.callPackage ./zluda-rocm5/package.nix { };
+}