Add system wide and per user nix store garbage collection

1 files changed, 12 insertions, 0 deletions

diff --git a/hosts/common/core/nix.nix b/hosts/common/core/nix.nix
index 3c798ae..3aac7fc 100644
--- a/hosts/common/core/nix.nix
+++ b/hosts/common/core/nix.nix
@@ -1,6 +1,12 @@
 { inputs, lib, ... }: 
 {
   nix = {
+    gc = {
+      automatic = true;
+      dates = "daily";
+      options = "--delete-older-than 7d";
+      randomizedDelaySec = "5min";
+    };
     settings = {
       auto-optimise-store = lib.mkDefault true;
       experimental-features = [ "nix-command" "flakes" ];
@@ -8,4 +14,10 @@
       warn-dirty = false;
     };
   };
+
+  systemd.user.services."nix-gc" = {
+    description = "Garbage collection for user profiles";
+    script = "/run/current-system/sw/bin/nix-collect-garbage --delete-older-than 7d";
+    startAt = "daily";
+  };
 }