diff --git a/metadata/.gitignore b/metadata/.gitignore
index 14d86ad..ff03039 100644
--- a/metadata/.gitignore
+++ b/metadata/.gitignore
@@ -1 +1,2 @@
 /cache
+/md5-cache
diff --git a/metadata/layout.conf b/metadata/layout.conf
index 14019f7..44d6bc6 100644
--- a/metadata/layout.conf
+++ b/metadata/layout.conf
@@ -1 +1,14 @@
 masters = calculate gentoo
+
+# Use thin manifests
+thin-manifests = true
+
+# Dont sign thin manifests. There is no current policy for git commit signing
+sign-manifests = false
+
+# Make egencache generate newer (more reliable)
+# md5-dict cache format
+cache-formats = md5-dict
+
+# Support package.* directories as well as files
+profile-formats = portage-2