diff --git a/munit/native/src/main/scala/munit/internal/io/PlatformIO.scala b/munit/native/src/main/scala/munit/internal/io/PlatformIO.scala
new file mode 100644
index 00000000..3e942d10
--- /dev/null
+++ b/munit/native/src/main/scala/munit/internal/io/PlatformIO.scala
@@ -0,0 +1,18 @@
+package munit.internal.io
+
+object PlatformIO {
+  type File = java.io.File
+  object File {
+    def separatorChar = java.io.File.separatorChar
+  }
+
+  object Files {
+    def readAllLines(path: Path): java.util.List[String] =
+      java.nio.file.Files.readAllLines(path)
+  }
+
+  type Path = java.nio.file.Path
+  object Paths {
+    def get(path: String): Path = java.nio.file.Paths.get(path)
+  }
+}
diff --git a/munit/shared/src/main/scala-2/munit/internal/MacroCompat.scala b/munit/shared/src/main/scala-2/munit/internal/MacroCompat.scala
index 594abdb7..1c15595a 100644
--- a/munit/shared/src/main/scala-2/munit/internal/MacroCompat.scala
+++ b/munit/shared/src/main/scala-2/munit/internal/MacroCompat.scala
@@ -1,6 +1,6 @@
 package munit.internal
 
-import munit.Clue
+import munit.diff.Clue
 import munit.Location
 import scala.language.experimental.macros
 import scala.reflect.macros.blackbox.Context
diff --git a/munit/shared/src/main/scala-3/munit/internal/MacroCompat.scala b/munit/shared/src/main/scala-3/munit/internal/MacroCompat.scala
index 1e5b3ce3..a4482204 100644
--- a/munit/shared/src/main/scala-3/munit/internal/MacroCompat.scala
+++ b/munit/shared/src/main/scala-3/munit/internal/MacroCompat.scala
@@ -1,6 +1,6 @@
 package munit.internal
 
-import munit.Clue
+import munit.diff.Clue
 import munit.Location
 import scala.quoted._
 import scala.language.experimental.macros
diff --git a/munit/shared/src/main/scala/munit/Assertions.scala b/munit/shared/src/main/scala/munit/Assertions.scala
index 22c3e5a2..970d151f 100644
--- a/munit/shared/src/main/scala/munit/Assertions.scala
+++ b/munit/shared/src/main/scala/munit/Assertions.scala
@@ -3,6 +3,8 @@ package munit
 import munit.internal.console.{Lines, StackTraces}
 import munit.diff.console.Printers
 import munit.diff.Printer
+import munit.diff.Clue
+import munit.diff.Clues
 import munit.diff.EmptyPrinter
 
 import scala.reflect.ClassTag
diff --git a/munit/shared/src/main/scala/munit/Clue.scala b/munit/shared/src/main/scala/munit/Clue.scala
index cb905bee..d81e322e 100644
--- a/munit/shared/src/main/scala/munit/Clue.scala
+++ b/munit/shared/src/main/scala/munit/Clue.scala
@@ -2,15 +2,16 @@ package munit
 
 import munit.internal.MacroCompat
 
-class Clue[+T](
-    val source: String,
-    val value: T,
-    val valueType: String
-) extends Serializable {
-  override def toString(): String = s"Clue($source, $value)"
-}
+// class Clue[+T](
+//     val source: String,
+//     val value: T,
+//     val valueType: String
+// ) extends Serializable {
+//   override def toString(): String = s"Clue($source, $value)"
+// }
 object Clue extends MacroCompat.ClueMacro {
   @deprecated("use fromValue instead", "1.0.0")
-  def empty[T](value: T): Clue[T] = fromValue(value)
-  def fromValue[T](value: T): Clue[T] = new Clue("", value, "")
+  def empty[T](value: T): munit.diff.Clue[T] = fromValue(value)
+  def fromValue[T](value: T): munit.diff.Clue[T] =
+    new munit.diff.Clue("", value, "")
 }
diff --git a/munit/shared/src/main/scala/munit/Clues.scala b/munit/shared/src/main/scala/munit/Clues.scala
index 8659a06a..ae64576a 100644
--- a/munit/shared/src/main/scala/munit/Clues.scala
+++ b/munit/shared/src/main/scala/munit/Clues.scala
@@ -2,10 +2,10 @@ package munit
 
 import munit.internal.console.Printers
 
-class Clues(val values: List[Clue[_]]) {
-  override def toString(): String = Printers.print(this)
-}
-object Clues {
-  def empty: Clues = new Clues(List())
-  def fromValue[T](value: T): Clues = new Clues(List(Clue.fromValue(value)))
-}
+// class Clues(val values: List[Clue[_]]) {
+//   override def toString(): String = Printers.print(this)
+// }
+// object Clues {
+//   def empty: Clues = new Clues(List())
+//   def fromValue[T](value: T): Clues = new Clues(List(Clue.fromValue(value)))
+// }
diff --git a/munit/shared/src/main/scala/munit/internal/MacroCompatScala2.scala b/munit/shared/src/main/scala/munit/internal/MacroCompatScala2.scala
index 90c298db..05f171b5 100644
--- a/munit/shared/src/main/scala/munit/internal/MacroCompatScala2.scala
+++ b/munit/shared/src/main/scala/munit/internal/MacroCompatScala2.scala
@@ -1,6 +1,6 @@
 package munit.internal
 
-import munit.Clue
+import munit.diff.Clue
 import munit.Location
 import scala.reflect.macros.blackbox.Context
 import scala.reflect.macros.TypecheckException
diff --git a/munit/shared/src/main/scala/munit/internal/console/Lines.scala b/munit/shared/src/main/scala/munit/internal/console/Lines.scala
index 440a55dc..5dc3ca84 100644
--- a/munit/shared/src/main/scala/munit/internal/console/Lines.scala
+++ b/munit/shared/src/main/scala/munit/internal/console/Lines.scala
@@ -6,7 +6,7 @@ import munit.Location
 import scala.collection.JavaConverters._
 import scala.collection.mutable
 import scala.util.control.NonFatal
-import munit.Clues
+import munit.diff.Clues
 
 class Lines extends Serializable {
   private val filecache = mutable.Map.empty[Path, Array[String]]
diff --git a/tests/shared/src/test/scala/munit/TypeCheckSuite.scala b/tests/shared/src/test/scala/munit/TypeCheckSuite.scala
index 3b92ca84..7bece05e 100644
--- a/tests/shared/src/test/scala/munit/TypeCheckSuite.scala
+++ b/tests/shared/src/test/scala/munit/TypeCheckSuite.scala
@@ -41,7 +41,7 @@ class TypeCheckSuite extends FunSuite {
            |
            |The following import might make progress towards fixing the problem:
            |
-           |  import munit.Clue.generate
+           |  import munit.diff.Clue.generate
            |
            |msg.foobar
            |   ^
@@ -84,7 +84,7 @@ class TypeCheckSuite extends FunSuite {
            |
            |The following import might make progress towards fixing the problem:
            |
-           |  import munit.Clue.generate
+           |  import munit.diff.Clue.generate
            |
            |val n: Int = msg
            |            ^