diff --git a/deployment/check/basic/flake-part.nix b/deployment/check/basic/flake-part.nix
index 6344f0f0..0341a2c0 100644
--- a/deployment/check/basic/flake-part.nix
+++ b/deployment/check/basic/flake-part.nix
@@ -2,6 +2,7 @@
   self,
   inputs,
   lib,
+  sources,
   ...
 }:
 
@@ -27,7 +28,9 @@ in
           ../common/nixosTest.nix
           ./nixosTest.nix
         ];
-        _module.args.inputs = inputs;
+        _module.args = {
+          inherit inputs sources;
+        };
         inherit targetMachines pathToRoot pathFromRoot;
       };
     };
@@ -44,7 +47,9 @@ in
           inputs.nixops4-nixos.modules.nixops4Resource.nixos
           ../common/targetResource.nix
         ];
-        _module.args.inputs = inputs;
+        _module.args = {
+          inherit inputs sources;
+        };
         inherit nodeName pathToRoot pathFromRoot;
         nixos.module =
           { pkgs, ... }:
diff --git a/deployment/check/common/deployerNode.nix b/deployment/check/common/deployerNode.nix
index 048bba5a..89466328 100644
--- a/deployment/check/common/deployerNode.nix
+++ b/deployment/check/common/deployerNode.nix
@@ -3,6 +3,7 @@
   lib,
   pkgs,
   config,
+  sources,
   ...
 }:
 
@@ -14,8 +15,6 @@ let
     types
     ;
 
-  sources = import ../../../npins;
-
 in
 {
   _class = "nixos";
diff --git a/deployment/check/common/nixosTest.nix b/deployment/check/common/nixosTest.nix
index fc0e935f..a16544cd 100644
--- a/deployment/check/common/nixosTest.nix
+++ b/deployment/check/common/nixosTest.nix
@@ -3,6 +3,7 @@
   lib,
   config,
   hostPkgs,
+  sources,
   ...
 }:
 
@@ -61,7 +62,9 @@ in
       {
         deployer = {
           imports = [ ./deployerNode.nix ];
-          _module.args.inputs = inputs;
+          _module.args = {
+            inherit inputs sources;
+          };
           enableAcme = config.enableAcme;
           acmeNodeIP = config.nodes.acme.networking.primaryIPAddress;
         };
diff --git a/flake.nix b/flake.nix
index dbf01ff0..8b48e7d4 100644
--- a/flake.nix
+++ b/flake.nix
@@ -31,6 +31,9 @@
           inherit nixpkgs;
         };
         self = self';
+        specialArgs = {
+          inherit sources;
+        };
       }
       (
         { inputs, ... }:
diff --git a/infra/flake-part.nix b/infra/flake-part.nix
index 31cdc5a3..24af4ec2 100644
--- a/infra/flake-part.nix
+++ b/infra/flake-part.nix
@@ -1,6 +1,7 @@
 {
   inputs,
   lib,
+  sources,
   ...
 }:
 
@@ -13,7 +14,6 @@ let
     filterAttrs
     ;
   inherit (lib.attrsets) genAttrs;
-  sources = import ../../npins;
 
   ## Given a machine's name and whether it is a test VM, make a resource module,
   ## except for its missing provider. (Depending on the use of that resource, we