feat: add cuda-maintainers substituter

feat: add cachix

deps: remove cachix, use substituters directly during rebuilds

cachix/cuda-maintainers.nix

@@ -0,0 +1,6 @@
+{
+  nix.settings = {
+    substituters = [ "https://cuda-maintainers.cachix.org/" ];
+    trusted-public-keys = [ "cuda-maintainers.cachix.org-1:0dq3bujKpuEPMCX6U4WylrUDZ9JyUG0VpVZa7CNfq5E=" ];
+  };
+}

flake.nix

@@ -35,6 +35,7 @@
         modules = [
           ./hosts/default/configuration.nix
           ./cachix/nixos-cosmic.nix
+          ./cachix/cuda-maintainers.nix
           home-manager.nixosModules.home-manager
         ];
       };
@@ -45,6 +46,7 @@
           ./hosts/default/configuration.nix
           ./hosts/default/secureboot.nix
           ./cachix/nixos-cosmic.nix
+          ./cachix/cuda-maintainers.nix
           home-manager.nixosModules.home-manager
           nixos-cosmic.nixosModules.default
           lanzaboote.nixosModules.lanzaboote

hosts/default/home.nix

@@ -6,7 +6,7 @@
     ./benchmarking.nix
     ./browsers.nix
     ./ctf.nix
-    # ./gaming.nix
+    ./gaming.nix
     ./git.nix
     # ./gnome.nix
     ./golang.nix
@@ -31,10 +31,6 @@
       };
     };
 
-    packages = with pkgs; [
-      newsflash
-    ];
-
     sessionVariables = {
       CUDA_CACHE_PATH = "${config.xdg.cacheHome}/nv";
       FLAKE = "${config.xdg.userDirs.publicShare}/dotfiles";