diff --git a/lib/inventory/constraints/default.nix b/lib/inventory/constraints/default.nix
index ed2764c8a..2f4ecd851 100644
--- a/lib/inventory/constraints/default.nix
+++ b/lib/inventory/constraints/default.nix
@@ -1,9 +1,12 @@
 {
-  lib,
-  config,
   resolvedRoles,
   instanceName,
   moduleName,
+  allRoles,
+}:
+{
+  lib,
+  config,
   ...
 }:
 let
@@ -11,7 +14,7 @@ let
 in
 {
   imports = [
-    ./interface.nix
+    (lib.modules.importApply ./interface.nix { inherit allRoles; })
     # Role assertions
     {
       config.assertions = lib.foldlAttrs (
@@ -24,7 +27,7 @@ in
             "${moduleName}.${instanceName}.roles.${roleName}.min" = {
               assertion = memberCount >= roleConstraints.min;
               message = ''
-                The ${moduleName} module requires at least ${builtins.toString roleConstraints.min} members of the '${roleName}' role
+                The '${moduleName}' module requires at least ${builtins.toString roleConstraints.min} members of the '${roleName}' role
                 but found '${builtins.toString memberCount}' members within instance '${instanceName}':
 
                 ${lib.concatLines members}
diff --git a/lib/inventory/constraints/interface.nix b/lib/inventory/constraints/interface.nix
index 84d0e6f65..b94064ffe 100644
--- a/lib/inventory/constraints/interface.nix
+++ b/lib/inventory/constraints/interface.nix
@@ -1,7 +1,8 @@
+{
+  allRoles,
+}:
 {
   lib,
-  allRoles,
-  moduleName,
   ...
 }:
 let
@@ -9,12 +10,6 @@ let
   rolesAttrs = builtins.groupBy lib.id allRoles;
 in
 {
-  options.serviceName = mkOption {
-    type = types.str;
-    default = moduleName;
-    readOnly = true;
-    visible = false;
-  };
   options.roles = lib.mapAttrs (
     _name: _:
     mkOption {
diff --git a/lib/inventory/frontmatter/default.nix b/lib/inventory/frontmatter/default.nix
index 243fb4c61..ce4a573b4 100644
--- a/lib/inventory/frontmatter/default.nix
+++ b/lib/inventory/frontmatter/default.nix
@@ -34,25 +34,33 @@ let
       allModules,
     }:
     lib.evalModules {
-      specialArgs = {
-        inherit moduleName resolvedRoles instanceName;
-        allRoles = getRoles "inventory.modules" allModules moduleName;
-      };
       modules = [
         (getFrontmatter allModules.${moduleName} moduleName)
         ./interface.nix
+        {
+          constraints.imports = [
+            (lib.modules.importApply ../constraints {
+              inherit moduleName resolvedRoles instanceName;
+              allRoles = getRoles "inventory.modules" allModules moduleName;
+            })
+          ];
+        }
       ];
     };
 
   # For Documentation purposes only
   frontmatterOptions =
     (lib.evalModules {
-      specialArgs = {
-        moduleName = "{moduleName}";
-        allRoles = [ "{roleName}" ];
-      };
       modules = [
         ./interface.nix
+        {
+          constraints.imports = [
+            (lib.modules.importApply ../constraints {
+              moduleName = "{moduleName}";
+              allRoles = [ "{roleName}" ];
+            })
+          ];
+        }
       ];
     }).options;
 
diff --git a/lib/inventory/frontmatter/interface.nix b/lib/inventory/frontmatter/interface.nix
index 4c1a1623d..238f89101 100644
--- a/lib/inventory/frontmatter/interface.nix
+++ b/lib/inventory/frontmatter/interface.nix
@@ -1,6 +1,5 @@
 {
   lib,
-  specialArgs,
   ...
 }:
 let
@@ -76,9 +75,8 @@ in
         ```
       '';
       type = types.submoduleWith {
-        inherit specialArgs;
         modules = [
-          ../constraints
+
         ];
       };
     };