diff --git a/homes/x86_64-linux/alejandro@git/default.nix b/homes/x86_64-linux/alejandro@git/default.nix
index ed30ca7..acfb642 100644
--- a/homes/x86_64-linux/alejandro@git/default.nix
+++ b/homes/x86_64-linux/alejandro@git/default.nix
@@ -7,4 +7,10 @@
       zsh.enable = true;
     };
   };
+
+  nix.gc = {
+    automatic = true;
+    options = "-d";
+    frequency = "03:15";
+  };
 }
diff --git a/modules/nixos/nix/default.nix b/modules/nixos/nix/default.nix
index 6afd7e0..4e81944 100644
--- a/modules/nixos/nix/default.nix
+++ b/modules/nixos/nix/default.nix
@@ -53,9 +53,9 @@ in {
       # TODO: Configure distributedBuilds and buildMachines?
 
       gc = {
-        automatic = true;
-        dates = "weekly";
-        options = "--delete-older-than 30d";
+        automatic = lib.mkDefault true;
+        dates = lib.mkDefault "weekly";
+        options = lib.mkDefault "--delete-older-than 30d";
       };
     };
   };
diff --git a/systems/x86_64-linux/git/default.nix b/systems/x86_64-linux/git/default.nix
index eea3bd9..f16169b 100644
--- a/systems/x86_64-linux/git/default.nix
+++ b/systems/x86_64-linux/git/default.nix
@@ -27,6 +27,10 @@ in {
     };
   };
 
+  nix.settings.auto-optimise-store = true;
+  nix.gc.dates = "03:15";
+  nix.gc.options = "-d";
+
   services.nginx.virtualHosts."${domain}" = {
     forceSSL = true;
     enableACME = true;