diff --git a/machines/core-services-01/gitea.nix b/machines/core-services-01/gitea.nix
index 71b46a2..9835ac1 100644
--- a/machines/core-services-01/gitea.nix
+++ b/machines/core-services-01/gitea.nix
@@ -13,7 +13,20 @@ in
     httpAddress = "127.0.0.1";
     httpPort = port;
     database.type = "postgres";
-    disableRegistration = true;
+    disableRegistration = false;
+    settings = {
+      openid = {
+        ENABLE_OPENID_SIGNUP = true;
+      };
+      oauth2_account = {
+        ENABLE_AUTO_REGISTRATION = true;
+        USERNAME = "email";
+      };
+      service = {
+        EMAIL_DOMAIN_WHITELIST = "ens.fr";
+        ALLOW_ONLY_EXTERNAL_REGISTRATION = true;
+      };
+    };
   };
 
   services.nginx = {