diff --git a/build.sbt b/build.sbt
new file mode 100644
index 0000000..c1ee6c9
--- /dev/null
+++ b/build.sbt
@@ -0,0 +1,3 @@
+scalaVersion := "2.13.12"
+
+libraryDependencies += "org.typelevel" %% "cats-core" % "2.9.0"
diff --git a/project/plugins.sbt b/project/plugins.sbt
new file mode 100644
index 0000000..9f35e04
--- /dev/null
+++ b/project/plugins.sbt
@@ -0,0 +1 @@
+// Intentionally left blank - no plugins required
diff --git a/src/main/scala/.gitkeep b/src/main/scala/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/src/test/scala/.gitkeep b/src/test/scala/.gitkeep
new file mode 100644
index 0000000..e69de29