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-rw-r--r--machines/t14/default.nix4
1 files changed, 4 insertions, 0 deletions
diff --git a/machines/t14/default.nix b/machines/t14/default.nix
index 96937c1..92eef60 100644
--- a/machines/t14/default.nix
+++ b/machines/t14/default.nix
@@ -37,6 +37,10 @@
 
 # Allow unfree packages
 	nixpkgs.config.allowUnfree = true;
+	nix.gc = {
+		automatic = true;
+		options = "--delete-older-than 30d";
+	};
 	nix.optimise.automatic = true;
 	nix.settings.trusted-users = [ "@wheel" ];