diff --git a/flake.nix b/flake.nix
index 60252ef..5758fd1 100644
--- a/flake.nix
+++ b/flake.nix
@@ -87,11 +87,6 @@
                 })
               ];
             }
-
-            {
-              nix.settings.substituters = [ "https://attic.xuyh0120.win/lantian" ];
-              nix.settings.trusted-public-keys = [ "lantian:EeAUQ+W+6r7EtwnmYjeVwx5kOGEBpjlBfPlzGlTNvHc=" ];
-            }
           ];
         };
 
@@ -119,11 +114,6 @@
 
             ./hosts/pdw-frankiel/hardware.nix
             ./hosts/pdw-frankiel/configuration.nix
-
-            {
-              nix.settings.substituters = [ "https://attic.xuyh0120.win/lantian" ];
-              nix.settings.trusted-public-keys = [ "lantian:EeAUQ+W+6r7EtwnmYjeVwx5kOGEBpjlBfPlzGlTNvHc=" ];
-            }
           ];
         };
       };
diff --git a/packages/gloomberb/flake.nix b/packages/gloomberb/flake.nix
index 63afaaf..38d21ea 100644
--- a/packages/gloomberb/flake.nix
+++ b/packages/gloomberb/flake.nix
@@ -41,6 +41,10 @@
               bunNix = ./bun.nix;
             };
 
+            bunInstallFlags = [
+              "--frozen-lockfile"
+            ];
+
             module = "src/index.tsx";
 
             bunCompileToBytecode = false;