diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -0,0 +1,15 @@
+# emilys Nix Infra
+
+## Deploy changes on ...
+
+### all hosts
+
+```console
+$ colmena apply --on @production
+```
+
+### routers only
+
+```console
+$ colmena apply --on @router
+```