diff --git a/.gitignore b/.gitignore
index 467357b..056e553 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 target/
-.bsp/
\ No newline at end of file
+.bsp/
+.idea/
diff --git a/.scalafmt.conf b/.scalafmt.conf
new file mode 100644
index 0000000..d3ac8d4
--- /dev/null
+++ b/.scalafmt.conf
@@ -0,0 +1,32 @@
+version = "3.5.8"
+runner.dialect = scala3
+align.openParenCallSite = true
+align.openParenDefnSite = true
+assumeStandardLibraryStripMargin = true
+continuationIndent.defnSite = 2
+continuationIndent.callSite = 2
+continuationIndent.ctorSite = 2
+danglingParentheses.preset = true
+docstrings.style = Asterisk
+docstrings.oneline = unfold
+indent.main = 2
+maxColumn = 120
+newlines.afterCurlyLambda = preserve
+rewrite.rules = [AvoidInfix, SortImports, RedundantParens, SortModifiers]
+rewrite.scala3.convertToNewSyntax = true
+rewrite.scala3.removeOptionalBraces = yes
+rewrite.sortModifiers.order = [
+  implicit
+  final
+  sealed
+  abstract
+  override
+  private
+  protected
+  lazy
+  open
+  transparent
+  inline
+  infix
+  opaque
+]
diff --git a/src/main/scala/Test.scala b/src/main/scala/Test.scala
index 48becd6..09f65ea 100644
--- a/src/main/scala/Test.scala
+++ b/src/main/scala/Test.scala
@@ -2,6 +2,7 @@ class Test {
 
   inline def test(fun: => Any): Any = fun
 
+  /* This works as of 3.1.3 */
   test {
     case class Pair[X, Y](
       x: X,
@@ -9,4 +10,27 @@ class Test {
     )
   }
 
-}
\ No newline at end of file
+    /**
+     * This does not work as of 3.1.3
+     * Self-types are not resolved, this does work though if
+     * Moveable and Vehicle are removed from the test context
+     */
+  test {
+     transparent trait Moveable {
+         def increaseSpeed(ms: Int): Moveable
+         def decreaseSpeed(ms: Int): Moveable
+     }
+
+     trait Vehicle { self: Moveable =>
+         def make: String
+         def model: String
+     }
+
+     class Car(val make: String, val model: String, val currentSpeed: Int) extends Vehicle with Moveable {
+         override def increaseSpeed(ms: Int):Car = new Car(make, model, currentSpeed + ms)
+         override def decreaseSpeed(ms: Int):Car = new Car(make, model, currentSpeed - ms)
+     }
+
+     val ford:Car = new Car("Ford", "Fiesta", 110).decreaseSpeed(20)
+  }
+}