feat: bump flakes, enable Steam, update kernel/NVIDIA, refine net+security

home-manager/home.nix

@@ -1,4 +1,5 @@
 { pkgs
+, lib
 , ...
 }:
 {
@@ -12,14 +13,14 @@
     config = {
       allowUnfree = true;
       # Workaround for https://github.com/nix-community/home-manager/issues/2942
-      #   nixpkgs.config.allowUnfreePredicate =
-      #     pkg:
-      #     builtins.elem (lib.getName pkg) [
-      #       "steam"
-      #       "steam-original"
-      #       "steam-run"
-      #       "steamtinkerlaunch"
-      #     ];
+        nixpkgs.config.allowUnfreePredicate =
+          pkg:
+          builtins.elem (lib.getName pkg) [
+            "steam"
+            "steam-original"
+            "steam-run"
+            "steamtinkerlaunch"
+          ];
     };
   };
 
@@ -32,6 +33,7 @@
       heroic
       hwinfo
       inkscape
+      keymapp
       lazygit
       libinput
       nerd-fonts.fira-code
@@ -43,6 +45,7 @@
       python3
       ripgrep
       statix
+      steam
       uget
       unzip
       waydroid