diff --git a/.holo/branches/emergence-site/_mueller.toml b/.holo/branches/emergence-site/_mueller.toml
new file mode 100644
index 00000000..96413557
--- /dev/null
+++ b/.holo/branches/emergence-site/_mueller.toml
@@ -0,0 +1,3 @@
+[holomapping]
+holosource = "=>emergence-layer"
+files = "**"
diff --git a/.holo/sources/mueller.toml b/.holo/sources/mueller.toml
new file mode 100644
index 00000000..be7196d4
--- /dev/null
+++ b/.holo/sources/mueller.toml
@@ -0,0 +1,3 @@
+[holosource]
+url = "https://github.com/JarvusInnovations/emergence-mueller.git"
+ref = "refs/heads/master"