update inputs, bin cache for cuda, disable cachy kernel, various fixes

modules/core/graphics/nvidia.nix

@@ -40,6 +40,16 @@
         cudaSupport = true;
         nvidia.acceptLicense = true;
       };
+
+      nix.settings = {
+        substituters = [
+          "https://cache.nixos-cuda.org"
+        ];
+
+        trusted-public-keys = [
+          "cache.nixos-cuda.org:74DUi4Ye579gUqzH4ziL9IyiJBlDpMRn9MBN8oNan9M="
+        ];
+      };
     };
   };
 }

modules/core/infra/syncthing.nix

@@ -32,7 +32,7 @@
             "Downloads" = mkFolder "/home/bug/Downloads";
             "Pictures" = mkFolder "/home/bug/Pictures";
             "Videos" = mkFolder "/home/bug/Videos";
-            "Music" = mkFolder "/home/bug/Music";
+            # "Music" = mkFolder "/home/bug/Music";
             "nix" = mkFolder "/home/bug/nix";
             "hytale" = mkFolder "/home/bug/.local/share/Hytale/UserData/Saves";
             "ssh" = mkFolder "/home/bug/.ssh";

modules/core/kernel.nix

@@ -1,9 +1,12 @@
 { inputs, ... }: {
   den.aspects.kernel = {
     nixos = { pkgs, ... }: {
-      nixpkgs.overlays = [ inputs.nix-cachyos-kernel.overlays.default ];
+      nixpkgs.overlays = [ inputs.nix-cachyos-kernel.overlays.pinned ];
 
-      boot.kernelPackages = pkgs.cachyosKernels.linuxPackages-cachyos-latest;
+      # boot.kernelPackages = pkgs.cachyosKernels.linuxPackages-cachyos-latest;
+
+      nix.settings.substituters = [ "https://attic.xuyh0120.win/lantian" ];
+      nix.settings.trusted-public-keys = [ "lantian:EeAUQ+W+6r7EtwnmYjeVwx5kOGEBpjlBfPlzGlTNvHc=" ];
     };
   };
 }