diff --git a/configs/nix.nix b/configs/nix.nix
index 942fd4a..84debd2 100644
--- a/configs/nix.nix
+++ b/configs/nix.nix
@@ -9,5 +9,14 @@
   nix = {
     package = pkgs.nixUnstable;
     extraOptions = "experimental-features = nix-command flakes";
+    binaryCaches = [
+      "http://cache.prism.r"
+      "https://cache.nixos.org/"
+    ];
+    binaryCachePublicKeys = [
+      "cache.prism-1:+S+6Lo/n27XEtvdlQKuJIcb1yO5NUqUCE2lolmTgNJU="
+      "cache.prism-2:YwmCm3/s/D+SxrPKN/ETjlpw/219pNUbpnluatp6FKI="
+      "hydra.nixos.org-1:CNHJZBh9K4tP3EKF6FkkgeVYsS3ohTl+oS0Qa8bezVs="
+    ];
   };
 }