diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 03522e5..e301af6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -30,7 +30,7 @@ jobs:
         os: [ubuntu-latest]
         scala: [3.2.0, 2.12.17, 2.13.8]
         java: [temurin@8]
-        project: [rootJS, rootJVM]
+        project: [rootJS, rootJVM, rootNative]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (full)
@@ -77,6 +77,10 @@ jobs:
         if: matrix.project == 'rootJS'
         run: sbt 'project ${{ matrix.project }}' '++${{ matrix.scala }}' Test/scalaJSLinkerResult
 
+      - name: nativeLink
+        if: matrix.project == 'rootNative'
+        run: sbt 'project ${{ matrix.project }}' '++${{ matrix.scala }}' Test/nativeLink
+
       - name: Test
         run: sbt 'project ${{ matrix.project }}' '++${{ matrix.scala }}' test
 
@@ -90,11 +94,11 @@ jobs:
 
       - name: Make target directories
         if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/series/1.x')
-        run: mkdir -p specs2/js/target target .js/target minitest/jvm/target minitest/js/target utest/js/target core/js/target core/jvm/target specs2/jvm/target .jvm/target .native/target utest/jvm/target scalatest/js/target scalatest/jvm/target project/target
+        run: mkdir -p specs2/js/target target .js/target minitest/jvm/target minitest/js/target utest/native/target core/native/target utest/js/target core/js/target core/jvm/target specs2/jvm/target .jvm/target .native/target scalatest/native/target utest/jvm/target scalatest/js/target scalatest/jvm/target specs2/native/target project/target
 
       - name: Compress target directories
         if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/series/1.x')
-        run: tar cf targets.tar specs2/js/target target .js/target minitest/jvm/target minitest/js/target utest/js/target core/js/target core/jvm/target specs2/jvm/target .jvm/target .native/target utest/jvm/target scalatest/js/target scalatest/jvm/target project/target
+        run: tar cf targets.tar specs2/js/target target .js/target minitest/jvm/target minitest/js/target utest/native/target core/native/target utest/js/target core/js/target core/jvm/target specs2/jvm/target .jvm/target .native/target scalatest/native/target utest/jvm/target scalatest/js/target scalatest/jvm/target specs2/native/target project/target
 
       - name: Upload target directories
         if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/series/1.x')
@@ -167,6 +171,16 @@ jobs:
           tar xf targets.tar
           rm targets.tar
 
+      - name: Download target directories (3.2.0, rootNative)
+        uses: actions/download-artifact@v2
+        with:
+          name: target-${{ matrix.os }}-${{ matrix.java }}-3.2.0-rootNative
+
+      - name: Inflate target directories (3.2.0, rootNative)
+        run: |
+          tar xf targets.tar
+          rm targets.tar
+
       - name: Download target directories (2.12.17, rootJS)
         uses: actions/download-artifact@v2
         with:
@@ -187,6 +201,16 @@ jobs:
           tar xf targets.tar
           rm targets.tar
 
+      - name: Download target directories (2.12.17, rootNative)
+        uses: actions/download-artifact@v2
+        with:
+          name: target-${{ matrix.os }}-${{ matrix.java }}-2.12.17-rootNative
+
+      - name: Inflate target directories (2.12.17, rootNative)
+        run: |
+          tar xf targets.tar
+          rm targets.tar
+
       - name: Download target directories (2.13.8, rootJS)
         uses: actions/download-artifact@v2
         with:
@@ -207,6 +231,16 @@ jobs:
           tar xf targets.tar
           rm targets.tar
 
+      - name: Download target directories (2.13.8, rootNative)
+        uses: actions/download-artifact@v2
+        with:
+          name: target-${{ matrix.os }}-${{ matrix.java }}-2.13.8-rootNative
+
+      - name: Inflate target directories (2.13.8, rootNative)
+        run: |
+          tar xf targets.tar
+          rm targets.tar
+
       - name: Import signing key
         if: env.PGP_SECRET != '' && env.PGP_PASSPHRASE == ''
         run: echo $PGP_SECRET | base64 -di | gpg --import
diff --git a/build.sbt b/build.sbt
index b9f4a37..bb439c3 100644
--- a/build.sbt
+++ b/build.sbt
@@ -16,7 +16,7 @@
 
 name := "cats-effect-testing"
 
-ThisBuild / tlBaseVersion := "1.4"
+ThisBuild / tlBaseVersion := "1.5"
 ThisBuild / startYear := Some(2020)
 ThisBuild / developers += tlGitHubDev("djspiewak", "Daniel Spiewak")
 
@@ -30,22 +30,23 @@ val CatsEffectVersion = "3.3.14"
 lazy val root = tlCrossRootProject
   .aggregate(core, specs2, utest, minitest, scalatest)
 
-lazy val core = crossProject(JSPlatform, JVMPlatform)
+lazy val core = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   .in(file("core"))
   .settings(
     name := "cats-effect-testing-core",
     tlVersionIntroduced := List("2.12", "2.13", "3").map(_ -> "1.3.0").toMap,
     libraryDependencies += "org.typelevel" %%% "cats-effect" % CatsEffectVersion)
+  .nativeSettings(tlVersionIntroduced := List("2.12", "2.13", "3").map(_ -> "1.5.0").toMap)
 
-lazy val specs2 = crossProject(JSPlatform, JVMPlatform)
+lazy val specs2 = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   .in(file("specs2"))
   .dependsOn(core)
   .settings(
     name := "cats-effect-testing-specs2",
-    libraryDependencies += ("org.specs2" %%% "specs2-core" % "4.17.0")
-      .exclude("org.scala-js", "scala-js-macrotask-executor_sjs1_2.13"))
+    libraryDependencies += "org.specs2" %%% "specs2-core" % "4.17.0")
+  .nativeSettings(tlVersionIntroduced := List("2.12", "2.13", "3").map(_ -> "1.5.0").toMap)
 
-lazy val scalatest = crossProject(JSPlatform, JVMPlatform)
+lazy val scalatest = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   .in(file("scalatest"))
   .dependsOn(core)
   .settings(
@@ -53,8 +54,9 @@ lazy val scalatest = crossProject(JSPlatform, JVMPlatform)
 
     libraryDependencies ++= Seq(
       "org.scalatest"    %%% "scalatest" % "3.2.14"))
+  .nativeSettings(tlVersionIntroduced := List("2.12", "2.13", "3").map(_ -> "1.5.0").toMap)
 
-lazy val utest = crossProject(JSPlatform, JVMPlatform)
+lazy val utest = crossProject(JSPlatform, JVMPlatform, NativePlatform)
   .in(file("utest"))
   .dependsOn(core)
   .settings(
@@ -67,6 +69,7 @@ lazy val utest = crossProject(JSPlatform, JVMPlatform)
       "com.lihaoyi" %%% "utest" % "0.8.1"),
 
     Test / scalacOptions -= "-Xfatal-warnings")
+  .nativeSettings(tlVersionIntroduced := List("2.12", "2.13", "3").map(_ -> "1.5.0").toMap)
 
 lazy val minitest = crossProject(JSPlatform, JVMPlatform)
   .in(file("minitest"))
diff --git a/core/js/src/main/scala/cats/effect/testing/RuntimePlatform.scala b/core/js-native/src/main/scala/cats/effect/testing/RuntimePlatform.scala
similarity index 100%
rename from core/js/src/main/scala/cats/effect/testing/RuntimePlatform.scala
rename to core/js-native/src/main/scala/cats/effect/testing/RuntimePlatform.scala
diff --git a/project/plugins.sbt b/project/plugins.sbt
index c6a389a..82fb0cf 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,2 +1,4 @@
 addSbtPlugin("org.typelevel" % "sbt-typelevel" % "0.4.16")
 addSbtPlugin("org.scala-js"  % "sbt-scalajs"   % "1.10.1")
+addSbtPlugin("org.scala-native"   % "sbt-scala-native" % "0.4.7")
+addSbtPlugin("org.portable-scala" % "sbt-scala-native-crossproject" % "1.2.0")
diff --git a/scalatest/js/src/main/scala/cats/effect/testing/scalatest/AsyncIOSpec.scala b/scalatest/js-native/src/main/scala/cats/effect/testing/scalatest/AsyncIOSpec.scala
similarity index 100%
rename from scalatest/js/src/main/scala/cats/effect/testing/scalatest/AsyncIOSpec.scala
rename to scalatest/js-native/src/main/scala/cats/effect/testing/scalatest/AsyncIOSpec.scala
diff --git a/specs2/js/src/test/scala/cats/effect/testing/specs2/CatsEffectSpecsPlatform.scala b/specs2/js-native/src/test/scala/cats/effect/testing/specs2/CatsEffectSpecsPlatform.scala
similarity index 100%
rename from specs2/js/src/test/scala/cats/effect/testing/specs2/CatsEffectSpecsPlatform.scala
rename to specs2/js-native/src/test/scala/cats/effect/testing/specs2/CatsEffectSpecsPlatform.scala