Changed graphics settings as per errors/warnings.

flake.nix

@@ -20,20 +20,35 @@
 
     # nur.url = "github:nix-community/NUR";
   };
-  outputs = { self, nixpkgs, home-manager }:
+  outputs =
+    {
+      self,
+      nixpkgs,
+      home-manager,
+    }:
     let
       system = "x86_64-linux";
-      hostname = "de-lacadie";
-    in {
-      nixosConfigurations = {
-        ${hostname} = nixpkgs.lib.nixosSystem {
-          inherit system;
-          modules = [
-            ./hosts/${hostname}/configuration.nix
-            home-manager.nixosModules.home-manager
-            # nur.nixosModules.nur
-          ];
-        };
-      };
+    in
+    {
+      nixosConfigurations =
+        let
+          hostnameToConfig = hostname: {
+            name = hostname;
+            value = nixpkgs.lib.nixosSystem {
+              inherit system;
+              modules = [
+                ./hosts/${hostname}/configuration.nix
+                home-manager.nixosModules.home-manager
+                # nur.nixosModules.nur
+              ];
+            };
+          };
+        in
+        builtins.listToAttrs (
+          builtins.map hostnameToConfig [
+            "randolph"
+            "de-lacadie"
+          ]
+        );
     };
 }

hosts/de-lacadie/configuration.nix

@@ -70,10 +70,9 @@
   hardware.bluetooth.enable = true;
 
   # Enable nvidia drivers and graphics.
-  hardware.opengl = {
+  hardware.graphics = {
     enable = true;
-    driSupport = true;
-    driSupport32Bit = true;
+    enable32Bit = true;
   };
 
   # Load nvidia driver for Xorg and Wayland