diff --git a/systems/palatine-hill/configuration.nix b/systems/palatine-hill/configuration.nix
index 8c46094..706e307 100644
--- a/systems/palatine-hill/configuration.nix
+++ b/systems/palatine-hill/configuration.nix
@@ -223,6 +223,8 @@ in
 
   system.autoUpgrade.flake = "github:ahuston-0/nix-dotfiles-hydra";
 
+  gc.options = "--delete-older-than 150d";
+
   sops = {
     defaultSopsFile = ./secrets.yaml;
     secrets =
diff --git a/users/alice/home/zsh.nix b/users/alice/home/zsh.nix
index f89c4ee..05c91d7 100644
--- a/users/alice/home/zsh.nix
+++ b/users/alice/home/zsh.nix
@@ -1,4 +1,4 @@
-{ pkg, ... }:
+{ pkgs, ... }:
 {
 
   programs.zsh = {
@@ -24,7 +24,7 @@
       {
         name = "zsh-nix-shell";
         file = "nix-shell.plugin.zsh";
-        src = pkg.fetchFromGitHub {
+        src = pkgs.fetchFromGitHub {
           owner = "chisui";
           repo = "zsh-nix-shell";
           rev = "v0.8.0";
diff --git a/users/alice/systems/artemision/configuration.nix b/users/alice/systems/artemision/configuration.nix
index 8c2dcce..71fc1b1 100644
--- a/users/alice/systems/artemision/configuration.nix
+++ b/users/alice/systems/artemision/configuration.nix
@@ -1,4 +1,4 @@
-{ config, ... }:
+{ config, pkgs, ... }:
 {
   imports = [
     ../configuration.nix