diff --git a/systems/x86_64-linux/LoyAdjo/default.nix b/systems/x86_64-linux/LoyAdjo/default.nix
index 7a47730..c75d438 100644
--- a/systems/x86_64-linux/LoyAdjo/default.nix
+++ b/systems/x86_64-linux/LoyAdjo/default.nix
@@ -8,11 +8,49 @@
 
   # Configure Nix
   nix.package = pkgs.lixPackageSets.stable.lix;
-  nix.settings = {
-    experimental-features = [ "nix-command" "flakes" ];
-    trusted-users = [ "remotebuild" ];
-  };
   nixpkgs.config.allowUnfree = false;
+  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+  nix.settings.connect-timeout = 5;
+  nix.settings.fallback = true;
+
+  # Binary Cache and Substitutes
+  #nix.settings.substituters = [
+  #  "ssh://ssh-nix@pkpnafs"
+  #];
+  #nix.settings.trusted-substituters = [
+  #  "ssh://ssh-nix@pkpnafs"
+  #];
+  nix.settings.trusted-public-keys = [
+    "cache-pkpnafs:guOMrEa3XPWnRihJtf7KraRRFLHlKvd1bmWbk7BZEow="
+    "cache-senfnvp:8fiqd165A80WZD8gLgzMjiQk6/8AdaANZqERktzIXkU="
+    "cache-Ohybke:0D+ovjv+/WqRX7hQ2qJzBbpE8NEBGtzmWQDpmlszcHQ="
+  ];
+  nix.extraOptions = ''
+    secret-key-files = /root/secrets/cache-LoyAdjo.sec
+    builders-use-substitutes = true
+  '';
+  #nix.sshServe.enable = true;
+  #nix.sshServe.keys = [
+  #];
+
+  # Nix Builders
+  nix.distributedBuilds = true;
+  nix.buildMachines = [
+    {
+      hostName = "pkpnafs";
+      sshUser = "nix-builder";
+      system = "x86_64-linux";
+      systems = [ "x86_64-linux" "i686-linux" ];
+      supportedFeatures = [
+        "kvm"
+        "big-parallel"
+      ];
+      maxJobs = 1;
+    }
+  ];
+
+  # Nix Security
+  nix.settings.trusted-users=[ "remotebuild" ];
   nixpkgs.config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
     "ungoogled-chromium"
     "ungoogled-chromium-unwrapped"
@@ -118,6 +156,7 @@
   programs.steam.remotePlay.openFirewall = true;
   hardware.steam-hardware.enable = true;
 
+
   # Languagetool Spellchecking Server  
   services.languagetool = {
     enable = true;