Add attic

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/common/configs/user/console/home-manager/default.nix

@@ -1,5 +1,10 @@
 { user, home }:
-{ config, inputs, ... }:
+{
+  config,
+  inputs,
+  lib,
+  ...
+}:
 {
   imports = [ inputs.home-manager.nixosModules.default ];
 
@@ -15,10 +20,18 @@
       home.stateVersion = "24.11";
       systemd.user.startServices = true;
 
-      nix.settings.experimental-features = [
-        "nix-command"
-        "flakes"
-      ];
+      nix.settings = {
+        use-xdg-base-directories = true;
+        experimental-features = [
+          "nix-command"
+          "flakes"
+        ];
+        download-buffer-size = 524288000;
+        substituters = lib.mkBefore [ "https://nix.karaolidis.com/main" ];
+        trusted-substituters = lib.mkBefore [ "https://nix.karaolidis.com/main" ];
+        trusted-public-keys = lib.mkBefore [ "main:nJVRBnv73MDkwuV5sgm52m4E2ImOhWHvY12qzjPegAk=" ];
+        netrc-file = config.sops.templates.nix-netrc.path;
+      };
     };
   };
 }