diff --git a/.gitignore b/.gitignore
index 6cce155..effb4fa 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 result
 .direnv
 doc/index.html
+keys
 
 # Result of bud commands
 vm
diff --git a/hosts/lungmen/default.nix b/hosts/lungmen/default.nix
index 9f32b54..cf93a20 100644
--- a/hosts/lungmen/default.nix
+++ b/hosts/lungmen/default.nix
@@ -47,6 +47,7 @@ in {
     common-gpu-amd
     common-cpu-amd
     ../../modules/network/dns
+    ../../modules/develop/nixbuild
     ../../users/root
     ../../users/patriot
   ];
diff --git a/modules/base/nix.nix b/modules/base/nix.nix
index 6299f1d..e772295 100644
--- a/modules/base/nix.nix
+++ b/modules/base/nix.nix
@@ -15,6 +15,7 @@
       keep-derivations = true
       fallback = true
       extra-experimental-features = nix-command flakes
+      builders-use-substitutes = true
     '';
     useSandbox = true;
     allowedUsers = ["@wheel"];
diff --git a/modules/develop/nixbuild/default.nix b/modules/develop/nixbuild/default.nix
new file mode 100644
index 0000000..fb84531
--- /dev/null
+++ b/modules/develop/nixbuild/default.nix
@@ -0,0 +1,26 @@
+{...}: {
+  programs.ssh.extraConfig = ''
+    Host eu.nixbuild.net
+      PubkeyAcceptedKeyTypes ssh-ed25519
+      IdentityFile /etc/nixos/keys/nixbuild.key
+  '';
+
+  programs.ssh.knownHosts = {
+    nixbuild = {
+      hostNames = ["eu.nixbuild.net"];
+      publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPIQCZc54poJ8vqawd8TraNryQeJnvH1eLpIDgbiqymM";
+    };
+  };
+
+  nix = {
+    distributedBuilds = true;
+    buildMachines = [
+      {
+        hostName = "eu.nixbuild.net";
+        system = "x86_64-linux";
+        maxJobs = 100;
+        supportedFeatures = ["benchmark" "big-parallel"];
+      }
+    ];
+  };
+}
diff --git a/users/patriot/default.nix b/users/patriot/default.nix
index c2244fc..56098ec 100644
--- a/users/patriot/default.nix
+++ b/users/patriot/default.nix
@@ -123,7 +123,7 @@ in {
         noto-fonts-cjk
         font-awesome
         dejavu_fonts
-        (nerdfonts.override {fonts = ["Monoid"];})
+        #(nerdfonts.override {fonts = [font.name];})
         # Programs
         wezterm
         cargo-outdated
@@ -151,12 +151,9 @@ in {
         rust-analyzer
         (
           lib.hiPrio
-          (
-            steam.override
-            {
-              extraLibraries = pkgs: with pkgs; [mimalloc pipewire vulkan-loader wayland wayland-protocols];
-            }
-          )
+          (steam.override {
+            extraLibraries = pkgs: with pkgs; [mimalloc pipewire vulkan-loader wayland wayland-protocols];
+          })
         )
         /*
          (multimc.overrideAttrs (old: {
@@ -164,7 +161,6 @@ in {
          }))
          */
         standardnotes
-        #discord-system-electron
         gh
         cloudflared
         ripcord