diff --git a/flake.nix b/flake.nix
index 873de9a..6bd88bb 100644
--- a/flake.nix
+++ b/flake.nix
@@ -61,8 +61,22 @@
   };
 
   nixConfig = {
-    extra-trusted-public-keys = "devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw=";
-    extra-substituters = "https://devenv.cachix.org";
+    extra-trusted-public-keys = [
+      "devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw="
+      "phundrak.cachix.org-1:osJAkYO0ioTOPqaQCIXMfIRz1/+YYlVFkup3R2KSexk="
+      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+    ];
+    extra-substituters = [
+      "https://nix-community.cachix.org?priority=10"
+      "https://devenv.cachix.org?priority=20"
+      "https://phundrak.cachix.org?priority=30"
+      "https://cache.nixos.org?priority=40"
+    ];
+    extra-experimental-features = [
+      "nix-command"
+      "flakes"
+    ];
+    http-connections = 128;
   };
 
   outputs = {
diff --git a/system/default.nix b/system/default.nix
index cfe89ae..00917ee 100644
--- a/system/default.nix
+++ b/system/default.nix
@@ -36,10 +36,33 @@ in {
     boot.tmp.cleanOnBoot = true;
     console.keyMap = cfg.keymap;
     time.timeZone = cfg.timezone;
-    environment.pathsToLink = ["/share/bash-completion" "/share/zsh"];
+    environment.pathsToLink = [
+      "/share/bash-completion"
+      "/share/zsh"
+    ];
     services = {
       orca.enable = false;
       envfs.enable = true;
     };
+
+    nix.settings = {
+      substituters = [
+        "https://nix-community.cachix.org?priority=10"
+        "https://devenv.cachix.org?priority=20"
+        "https://phundrak.cachix.org?priority=30"
+        "https://cache.nixos.org?priority=40"
+      ];
+      trusted-public-keys = [
+        "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
+        "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+        "devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw="
+        "phundrak.cachix.org-1:osJAkYO0ioTOPqaQCIXMfIRz1/+YYlVFkup3R2KSexk="
+      ];
+      http-connections = 128;
+      experimental-features = [
+        "nix-command"
+        "flakes"
+      ];
+    };
   };
 }