diff --git a/configs/home-manager/common.nix b/configs/home-manager/common.nix
index fffea0a..f64a748 100644
--- a/configs/home-manager/common.nix
+++ b/configs/home-manager/common.nix
@@ -1,4 +1,5 @@
 {
+  inputs,
   config,
   pkgs,
   lib,
@@ -9,11 +10,17 @@
   # Let Home Manager install and manage itself on non-nixos systems.
   programs.home-manager.enable = config.targets.genericLinux.enable;
 
-  services.home-manager.autoExpire = {
+  nixpkgs.overlays = lib.mkIf (config.targets.genericLinux.enable && (inputs ? nixpkgs-fork)) [
+    (final: prev: {
+      fork = inputs.nixpkgs-fork.legacyPackages.${prev.system};
+    })
+  ];
+
+  services.home-manager.autoExpire = lib.mkIf config.targets.genericLinux.enable {
     enable = true;
     store = {
       cleanup = true;
-      options = "--delete-older-than 30d";
+      options = "--delete-older-than 7d";
     };
   };
 
diff --git a/configs/nixos/common.nix b/configs/nixos/common.nix
index f198f93..14bc1db 100644
--- a/configs/nixos/common.nix
+++ b/configs/nixos/common.nix
@@ -25,6 +25,12 @@ in {
     };
   };
 
+  nixpkgs.overlays = lib.mkIf (inputs ? nixpkgs-fork) [
+    (final: prev: {
+      fork = inputs.nixpkgs-fork.legacyPackages.${prev.system};
+    })
+  ];
+
   # Allow unfree packages
   nixpkgs.config.allowUnfree = true;
 
diff --git a/flake.nix b/flake.nix
index 62cb334..6d2e309 100644
--- a/flake.nix
+++ b/flake.nix
@@ -5,6 +5,8 @@
     # Nixpkgs
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
 
+    # nixpkgs-fork.url="github:gabevenberg/nixpkgs/nixos-unstable";
+
     nixos-wsl = {
       url = "github:nix-community/NixOS-WSL/main";
       inputs.nixpkgs.follows = "nixpkgs";
diff --git a/hosts/harmatan/default.nix b/hosts/harmatan/default.nix
index e43f25d..46a7a31 100644
--- a/hosts/harmatan/default.nix
+++ b/hosts/harmatan/default.nix
@@ -47,15 +47,15 @@ inputs.nixpkgs.lib.nixosSystem {
 
       nixpkgs.overlays = let
         args = "--force-device-scale-factor=2";
-        desktopItemModifier = e: rec {
-          desktopItem = e.desktopItem.override (d: {
-            exec = "${d.exec} ${args}";
+        desktopItemModifier = prevAttrs: {
+          desktopItem = prevAttrs.desktopItem.override (prev: {
+            exec = "${prev.exec} ${args}";
           });
         };
-        desktopItemsModifier = e: rec {
+        desktopItemsModifier = previousAttrs: {
           desktopItems = [
-            ((builtins.head e.desktopItems).override (d: {
-              exec = "${d.exec} ${args}";
+            ((builtins.head previousAttrs.desktopItems).override (prev: {
+              exec = "${prev.exec} ${args}";
             }))
           ];
         };
diff --git a/roles/home-manager/eda.nix b/roles/home-manager/eda.nix
index 05db557..8d6e106 100644
--- a/roles/home-manager/eda.nix
+++ b/roles/home-manager/eda.nix
@@ -1,4 +1,5 @@
 {
+  inputs,
   config,
   pkgs,
   lib,
@@ -6,5 +7,6 @@
 }: {
   home.packages = with pkgs; [
     kicad
+    interactive-html-bom
   ];
 }