diff --git a/jpa-starter/src/main/resources/META-INF/services/org.hibernate.boot.model.TypeContributor b/jpa-starter/src/main/resources/META-INF/services/org.hibernate.boot.model.TypeContributor
new file mode 100644
index 00000000..03f78eca
--- /dev/null
+++ b/jpa-starter/src/main/resources/META-INF/services/org.hibernate.boot.model.TypeContributor
@@ -0,0 +1 @@
+com.raynigon.unit.api.jpa.configuration.UnitApiTypeRegistration
diff --git a/spring-boot-jpa-starter/src/main/java/com/raynigon/unit/api/jpa/configuration/UnitApiTypeRegistration.java b/spring-boot-jpa-starter/src/main/java/com/raynigon/unit/api/jpa/configuration/UnitApiTypeRegistration.java
new file mode 100644
index 00000000..e69de29b
diff --git a/spring-boot-jpa-starter/src/main/java/com/raynigon/unit/api/jpa/type/UnitJavaDescriptor.java b/spring-boot-jpa-starter/src/main/java/com/raynigon/unit/api/jpa/type/UnitJavaDescriptor.java
new file mode 100644
index 00000000..e69de29b
diff --git a/spring-boot-jpa-starter/src/main/java/com/raynigon/unit/api/jpa/type/UnitType.java b/spring-boot-jpa-starter/src/main/java/com/raynigon/unit/api/jpa/type/UnitType.java
new file mode 100644
index 00000000..e69de29b