diff --git a/hosts/citadel/default.nix b/hosts/citadel/default.nix
index b5bea31..b8f847b 100644
--- a/hosts/citadel/default.nix
+++ b/hosts/citadel/default.nix
@@ -53,6 +53,7 @@ in {
     ../common/optional/printing.nix
     ../common/optional/backlight.nix
     ../common/optional/xmodmap-arrow-remaps.nix
+    ../common/optional/nix-ld.nix
   ];
 
   boot = {
diff --git a/hosts/common/optional/nix-ld.nix b/hosts/common/optional/nix-ld.nix
new file mode 100644
index 0000000..abf5250
--- /dev/null
+++ b/hosts/common/optional/nix-ld.nix
@@ -0,0 +1,21 @@
+{ lib, pkgs, ... }:
+{
+  # Using non-Nix Python Packages with Binaries on NixOS https://github.com/mcdonc/.nixconfig/blob/e7885ad18b7980f221e59a21c91b8eb02795b541/videos/pydev/script.rst
+  programs.nix-ld.enable = true;
+  programs.nix-ld.libraries = with pkgs; [
+    zlib # numpy
+    libgcc  # sqlalchemy
+    expat # pyosmium
+    # that's where the shared libs go, you can find which one you need using 
+    # nix-locate --top-level libstdc++.so.6  (replace this with your lib)
+    # ^ this requires `nix-index` pkg
+  ];
+
+  environment.variables = {
+      NIX_LD_LIBRARY_PATH="/run/current-system/sw/share/nix-ld/lib";
+      NIX_LD="/run/current-system/sw/share/nix-ld/lib/ld.so";
+      LD_LIBRARY_PATH=lib.mkForce "$NIX_LD_LIBRARY_PATH";
+  };
+
+}
+
diff --git a/hosts/semita/default.nix b/hosts/semita/default.nix
index a3175fc..4060ae4 100644
--- a/hosts/semita/default.nix
+++ b/hosts/semita/default.nix
@@ -57,6 +57,7 @@ in {
     ../common/optional/nixos-containers/jellyfin.nix
     ../common/optional/nixos-containers/baseddata-worker.nix
     ../common/optional/nixos-containers/mongodb.nix
+    ../common/optional/nix-ld.nix
   ];
 
   fileSystems."/media/main-ssd" = {
@@ -132,22 +133,5 @@ in {
     };
   };
 
-  # Using non-Nix Python Packages with Binaries on NixOS https://github.com/mcdonc/.nixconfig/blob/e7885ad18b7980f221e59a21c91b8eb02795b541/videos/pydev/script.rst
-  programs.nix-ld.enable = true;
-  programs.nix-ld.libraries = with pkgs; [
-    zlib # numpy
-    libgcc  # sqlalchemy
-    expat # pyosmium
-    # that's where the shared libs go, you can find which one you need using 
-    # nix-locate --top-level libstdc++.so.6  (replace this with your lib)
-    # ^ this requires `nix-index` pkg
-  ];
-
-  environment.variables = {
-      NIX_LD_LIBRARY_PATH="/run/current-system/sw/share/nix-ld/lib";
-      NIX_LD="/run/current-system/sw/share/nix-ld/lib/ld.so";
-      LD_LIBRARY_PATH=lib.mkForce "$NIX_LD_LIBRARY_PATH";
-  };
-
   services.libinput.enable = true;
 }