setting up media server

hosts/media-server/configuration.nix

@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ config, lib, inputs, pkgs, ... }:
 
 {
   imports =
@@ -6,7 +6,34 @@
       ./hardware-configuration.nix
     ];
 
-  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+  nixpkgs = {
+    config = {
+      allowUnfree = true;
+    };
+  };
+
+  nix = {
+    settings = {
+      experimental-features = [
+        "nix-command"
+        "flakes"
+      ];
+      substituters = [
+        "https://nix-community.cachix.org"
+        "https://cache.garnix.io"
+      ];
+      trusted-public-keys = [
+        "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+        "cache.garnix.io:CTFPyKSLcx5RMJKfLo5EEPUObbA78b0YQ2DTCJXqr9g="
+      ];
+    };
+
+    registry = {
+      emenel-templates.flake = inputs.emenel-templates;
+    };
+
+    channel.enable = false; # remove nix-channel related tools & configs, we use flakes instead.
+  };
 
   # Use the systemd-boot EFI boot loader.
   boot.loader.systemd-boot.enable = true;
@@ -114,4 +141,5 @@
     # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
     system.stateVersion = "25.05"; # Did you read the comment?
 
+  };
 }