diff --git a/README.md b/README.md
index e69de29..27fc9ed 100644
--- a/README.md
+++ b/README.md
@@ -0,0 +1,14 @@
+# pub.solar Keycloak theme
+
+To start a dev keycloak instance that can show the theme.
+
+```
+docker run \
+  --name keycloak-theme-dev \
+  -p 8080:8080 \
+  -e KEYCLOAK_ADMIN=admin \
+  -e KEYCLOAK_ADMIN_PASSWORD=admin \
+  -v $(pwd):/opt/keycloak/themes/pub.solar \
+  quay.io/keycloak/keycloak:20.0.1 \
+  start-dev
+```