1 files changed, 13 insertions, 1 deletions

diff --git a/flakes/myuids/flake.nix b/flakes/myuids/flake.nix
index cc6dc66..ff33651 100644
--- a/flakes/myuids/flake.nix
+++ b/flakes/myuids/flake.nix
@@ -6,6 +6,7 @@
       # Check that there is no clash with nixos/modules/misc/ids.nix
       uids = {
         cryptpad = 386;
+        openldap = 99; # commented in the ids file
         postfixscripts = 387;
         acme = 388;
         backup = 389;
@@ -21,6 +22,7 @@
       };
       gids = {
         nagios = 11; # commented in the ids file
+        openldap = 99; # commented in the ids file
         cryptpad = 386;
         acme = 388;
         backup = 389;
@@ -35,10 +37,20 @@
         mastodon = 399;
       };
     };
-    nixosModule = { ... }: {
+    nixosModule = { config, lib, ... }: {
       config = {
         ids.uids = self.lib.uids;
         ids.gids = self.lib.gids;
+        assertions = [
+          {
+            assertion = builtins.length (builtins.attrValues config.ids.gids) == builtins.length (lib.unique (builtins.attrValues config.ids.gids));
+            message = "Non-unique list of gids";
+          }
+          {
+            assertion = builtins.length (builtins.attrValues config.ids.uids) == builtins.length (lib.unique (builtins.attrValues config.ids.uids));
+            message = "Non-unique list of uids";
+          }
+        ];
       };
     };
   };