diff --git a/lib/LintConfig.hs b/lib/LintConfig.hs
index a84740dc87fbe2fe6a8f78c2b2541ae8ca1e747c..b0fa3b053e5c9d2b1354b9217b65da86405621aa 100644
--- a/lib/LintConfig.hs
+++ b/lib/LintConfig.hs
@@ -182,9 +182,7 @@ expandWorlds config = config { configUriSchemas = configUriSchemas' }
     assemblysubsts =
       DomainSubstitution (M.fromList generated) ["map"]
       where generated = configAssemblies config
-              <&> \slug -> if slug == "lobby"
-              then (slug, "/_/global/raw.githubusercontent.com/c0c0bird/bridging-bubbles")
-              else (slug, "/_/global/maps.world.di.c3voc.de/assembly/"<>slug)
+              <&> \slug -> (slug, "/@/"<>configEventSlug config<>"/"<>slug)
 
 instance (FromJSON (LintConfig a)) => Argument (LintConfig a) where
   parseArgument str =
diff --git a/lib/Properties.hs b/lib/Properties.hs
index 66f817ba16f58852655621b39caaf5ab2ff24f8f..291827f11cb1532992b4f7a6bd1c37f7764b8e27 100644
--- a/lib/Properties.hs
+++ b/lib/Properties.hs
@@ -683,9 +683,7 @@ unwrapPath str f = case parsePath str of
       else complain $ "cannot acess paths \"" <> str <> "\" which is outside your repository."
   NotAPath -> complain $ "path \"" <> str <> "\" is invalid."
   AbsolutePath -> forbid "absolute paths are disallowed. Use world:// instead."
-  UnderscoreMapLink -> suggest "we know there's been some confusion about links; but you can \
-                               \still use world:// instead of /_/ (though the latter is now also \
-                               \allowed to keep maps working)"
+  UnderscoreMapLink -> forbid "map links using /_/ are disallowed. Use world:// instead."
   AtMapLink -> forbid "map links using /@/ are disallowed. Use world:// instead."
   PathVarsDisallowed -> forbid "extended API variables are not allowed in asset paths."