diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3c65e7cd..982fe5b0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,6 +15,10 @@ on:
     tags: [v*]
 
 env:
+  PGP_PASSPHRASE: ${{ secrets.PGP_PASSPHRASE }}
+  SONATYPE_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }}
+  SONATYPE_USERNAME: ${{ secrets.SONATYPE_USERNAME }}
+  PGP_SECRET: ${{ secrets.PGP_SECRET }}
   GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
 jobs:
@@ -25,7 +29,7 @@ jobs:
         os: [ubuntu-latest]
         scala: [2.12.15, 2.13.8]
         java: [temurin@8]
-        ci: [validateJVM, validateJS, validateNative]
+        project: [rootJS, rootJVM, rootNative]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (full)
@@ -53,15 +57,49 @@ jobs:
           key: ${{ runner.os }}-sbt-cache-v2-${{ hashFiles('**/*.sbt') }}-${{ hashFiles('project/build.properties') }}
 
       - name: Check that workflows are up to date
-        run: sbt ++${{ matrix.scala }} githubWorkflowCheck
+        run: sbt 'project ${{ matrix.project }}' '++${{ matrix.scala }}' 'project /' githubWorkflowCheck
 
-      - name: Validation
-        run: sbt ++${{ matrix.scala }} '${{ matrix.ci }}'
+      - name: Check formatting
+        run: sbt 'project ${{ matrix.project }}' '++${{ matrix.scala }}' scalafmtCheckAll scalafmtSbtCheck
+
+      - name: fastOptJS
+        if: matrix.project == 'rootJS'
+        run: sbt 'project ${{ matrix.project }}' '++${{ matrix.scala }}' Test/fastOptJS
+
+      - 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
+
+      - name: Check binary compatibility
+        if: matrix.java == 'temurin@8'
+        run: sbt 'project ${{ matrix.project }}' '++${{ matrix.scala }}' mimaReportBinaryIssues
+
+      - name: Generate API documentation
+        if: matrix.java == 'temurin@8'
+        run: sbt 'project ${{ matrix.project }}' '++${{ matrix.scala }}' doc
+
+      - name: Make target directories
+        if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
+        run: mkdir -p target .js/target core/.native/target core/.js/target core/.jvm/target .jvm/target .native/target project/target
+
+      - name: Compress target directories
+        if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
+        run: tar cf targets.tar target .js/target core/.native/target core/.js/target core/.jvm/target .jvm/target .native/target project/target
+
+      - name: Upload target directories
+        if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
+        uses: actions/upload-artifact@v2
+        with:
+          name: target-${{ matrix.os }}-${{ matrix.java }}-${{ matrix.scala }}-${{ matrix.project }}
+          path: targets.tar
 
   publish:
     name: Publish Artifacts
     needs: [build]
-    if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v'))
+    if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
     strategy:
       matrix:
         os: [ubuntu-latest]
@@ -93,11 +131,76 @@ jobs:
             ~/Library/Caches/Coursier/v1
           key: ${{ runner.os }}-sbt-cache-v2-${{ hashFiles('**/*.sbt') }}-${{ hashFiles('project/build.properties') }}
 
-      - uses: olafurpg/setup-gpg@v3
+      - name: Download target directories (2.12.15, rootJS)
+        uses: actions/download-artifact@v2
+        with:
+          name: target-${{ matrix.os }}-${{ matrix.java }}-2.12.15-rootJS
+
+      - name: Inflate target directories (2.12.15, rootJS)
+        run: |
+          tar xf targets.tar
+          rm targets.tar
+
+      - name: Download target directories (2.12.15, rootJVM)
+        uses: actions/download-artifact@v2
+        with:
+          name: target-${{ matrix.os }}-${{ matrix.java }}-2.12.15-rootJVM
+
+      - name: Inflate target directories (2.12.15, rootJVM)
+        run: |
+          tar xf targets.tar
+          rm targets.tar
+
+      - name: Download target directories (2.12.15, rootNative)
+        uses: actions/download-artifact@v2
+        with:
+          name: target-${{ matrix.os }}-${{ matrix.java }}-2.12.15-rootNative
+
+      - name: Inflate target directories (2.12.15, rootNative)
+        run: |
+          tar xf targets.tar
+          rm targets.tar
+
+      - name: Download target directories (2.13.8, rootJS)
+        uses: actions/download-artifact@v2
+        with:
+          name: target-${{ matrix.os }}-${{ matrix.java }}-2.13.8-rootJS
+
+      - name: Inflate target directories (2.13.8, rootJS)
+        run: |
+          tar xf targets.tar
+          rm targets.tar
+
+      - name: Download target directories (2.13.8, rootJVM)
+        uses: actions/download-artifact@v2
+        with:
+          name: target-${{ matrix.os }}-${{ matrix.java }}-2.13.8-rootJVM
+
+      - name: Inflate target directories (2.13.8, rootJVM)
+        run: |
+          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 $PGP_SECRET | base64 -d | gpg --import
+
+      - name: Import signing key and strip passphrase
+        if: env.PGP_SECRET != '' && env.PGP_PASSPHRASE != ''
+        run: |
+          echo "$PGP_SECRET" | base64 -d > /tmp/signing-key.gpg
+          echo "$PGP_PASSPHRASE" | gpg --pinentry-mode loopback --passphrase-fd 0 --import /tmp/signing-key.gpg
+          (echo "$PGP_PASSPHRASE"; echo; echo) | gpg --command-fd 0 --pinentry-mode loopback --change-passphrase $(gpg --list-secret-keys --with-colons 2> /dev/null | grep '^sec:' | cut --delimiter ':' --fields 5 | tail -n 1)
 
-      - env:
-          PGP_PASSPHRASE: ${{ secrets.PGP_PASSPHRASE }}
-          PGP_SECRET: ${{ secrets.PGP_SECRET }}
-          SONATYPE_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }}
-          SONATYPE_USERNAME: ${{ secrets.SONATYPE_USERNAME }}
-        run: sbt ++${{ matrix.scala }} ci-release
+      - name: Publish
+        run: sbt '++${{ matrix.scala }}' tlRelease
diff --git a/.sbtrc b/.sbtrc
index 741a9b6e..39ec4794 100644
--- a/.sbtrc
+++ b/.sbtrc
@@ -1 +1 @@
-alias boot = ;reload ;project kittens ;iflast shell
+alias boot = ;reload ;project / ;iflast shell
diff --git a/build.sbt b/build.sbt
index 34a37f42..2d9af0d1 100644
--- a/build.sbt
+++ b/build.sbt
@@ -2,10 +2,8 @@ import sbt._
 
 ThisBuild / crossScalaVersions := Seq("2.12.15", "2.13.8")
 ThisBuild / scalaVersion := "2.13.8"
-
-lazy val buildSettings = Seq(
-  organization := "org.typelevel"
-)
+ThisBuild / tlBaseVersion := "2.3"
+ThisBuild / organization := "org.typelevel"
 
 val catsVersion = "2.7.0"
 val disciplineMunitVersion = "1.0.9"
@@ -36,43 +34,34 @@ lazy val commonSettings = Seq(
     "org.typelevel" %%% "alleycats-core" % catsVersion,
     "com.chuusai" %%% "shapeless" % shapelessVersion,
     "org.typelevel" %%% "cats-testkit" % catsVersion % Test,
+    "org.scalameta" %%% "munit" % "0.7.29" % Test,
     "org.typelevel" %%% "discipline-munit" % disciplineMunitVersion % Test,
     "org.scala-lang" % "scala-reflect" % scalaVersion.value % Test,
     compilerPlugin(("org.typelevel" %% "kind-projector" % kindProjectorVersion).cross(CrossVersion.full))
   ),
-  Test / parallelExecution := false,
-  versionScheme := Some("semver-spec"),
-  mimaPreviousArtifacts := Set(organization.value %% moduleName.value % "2.2.1")
+  Test / parallelExecution := false
 )
 
 console / initialCommands := """import shapeless._, cats._, cats.derived._"""
 
-lazy val commonJsSettings = Seq(
-  Global / scalaJSStage := FastOptStage,
-  Test / scalaJSLinkerConfig ~= (_.withModuleKind(ModuleKind.CommonJSModule))
-)
-
-lazy val coreSettings =
-  Seq.concat(buildSettings, commonSettings, crossVersionSharedSources, publishSettings)
-
-lazy val kittens = project
-  .in(file("."))
-  .aggregate(coreJS, coreJVM, coreNative)
-  .dependsOn(coreJS, coreJVM, coreNative)
-  .settings(coreSettings: _*)
-  .settings(noPublishSettings)
+lazy val root = tlCrossRootProject.aggregate(core)
 
 lazy val core = crossProject(JVMPlatform, JSPlatform, NativePlatform)
   .crossType(CrossType.Pure)
   .settings(moduleName := "kittens")
-  .settings(coreSettings: _*)
-  .jsSettings(commonJsSettings: _*)
+  .settings(commonSettings: _*)
+  .jsSettings(
+    tlVersionIntroduced := List("2.12", "2.13").map(_ -> "2.1.0").toMap
+  )
+  .nativeSettings(
+    tlVersionIntroduced := List("2.12", "2.13").map(_ -> "2.2.2").toMap
+  )
 
 lazy val coreJVM = core.jvm
 lazy val coreJS = core.js
 lazy val coreNative = core.native
 
-addCommandAlias("root", ";project kittens")
+addCommandAlias("root", ";project /")
 addCommandAlias("jvm", ";project coreJVM")
 addCommandAlias("js", ";project coreJS")
 addCommandAlias("native", ";project coreNative")
@@ -87,43 +76,19 @@ addCommandAlias("mima", "coreJVM/mimaReportBinaryIssues")
 addCommandAlias("fmt", "all scalafmtSbt scalafmtAll")
 addCommandAlias("fmtCheck", "all scalafmtSbtCheck scalafmtCheckAll")
 
-lazy val crossVersionSharedSources: Seq[Setting[_]] = Seq(Compile, Test).map { sc =>
-  (sc / unmanagedSourceDirectories) ++= (sc / unmanagedSourceDirectories).value.map { dir: File =>
-    new File(dir.getPath + "_" + scalaBinaryVersion.value)
-  }
-}
-
-lazy val publishSettings = Seq(
-  Test / publishArtifact := false,
-  pomIncludeRepository := (_ => false),
-  homepage := Some(url("https://github.com/typelevel/kittens")),
-  licenses := Seq("Apache 2" -> url("http://www.apache.org/licenses/LICENSE-2.0.txt")),
-  scmInfo := Some(ScmInfo(url("https://github.com/typelevel/kittens"), "scm:git:git@github.com:typelevel/kittens.git")),
-  developers := List(
-    Developer("milessabin", "Miles Sabin", "", url("http://milessabin.com/blog")),
-    Developer("kailuowang", "Kai(luo) Wang", "kailuo.wang@gmail.com", url("http://kailuowang.com/")),
-    Developer("joroKr21", "Georgi Krastev", "joro.kr.21@gmail.com", url("https://twitter.com/Joro_Kr"))
-  )
+ThisBuild / licenses := Seq("Apache 2" -> url("http://www.apache.org/licenses/LICENSE-2.0.txt"))
+ThisBuild / developers := List(
+  Developer("milessabin", "Miles Sabin", "", url("http://milessabin.com/blog")),
+  Developer("kailuowang", "Kai(luo) Wang", "kailuo.wang@gmail.com", url("http://kailuowang.com/")),
+  Developer("joroKr21", "Georgi Krastev", "joro.kr.21@gmail.com", url("https://twitter.com/Joro_Kr"))
 )
 
-lazy val noPublishSettings =
-  publish / skip := true
-
-ThisBuild / githubWorkflowJavaVersions := List(JavaSpec.temurin("8"))
-ThisBuild / githubWorkflowArtifactUpload := false
-ThisBuild / githubWorkflowBuildMatrixAdditions += "ci" -> List("validateJVM", "validateJS", "validateNative")
-ThisBuild / githubWorkflowBuild := List(WorkflowStep.Sbt(List("${{ matrix.ci }}"), name = Some("Validation")))
-ThisBuild / githubWorkflowTargetTags ++= Seq("v*")
-ThisBuild / githubWorkflowPublishTargetBranches := Seq(RefPredicate.StartsWith(Ref.Tag("v")))
-ThisBuild / githubWorkflowPublishPreamble += WorkflowStep.Use(UseRef.Public("olafurpg", "setup-gpg", "v3"))
-ThisBuild / githubWorkflowPublish := Seq(
-  WorkflowStep.Sbt(
-    List("ci-release"),
-    env = Map(
-      "PGP_PASSPHRASE" -> "${{ secrets.PGP_PASSPHRASE }}",
-      "PGP_SECRET" -> "${{ secrets.PGP_SECRET }}",
-      "SONATYPE_PASSWORD" -> "${{ secrets.SONATYPE_PASSWORD }}",
-      "SONATYPE_USERNAME" -> "${{ secrets.SONATYPE_USERNAME }}"
+ThisBuild / tlCiReleaseBranches := Seq("main")
+ThisBuild / githubWorkflowBuild ~= { steps =>
+  val formatStep = WorkflowStep
+    .Sbt(
+      List("scalafmtCheckAll", "scalafmtSbtCheck"),
+      name = Some("Check formatting")
     )
-  )
-)
+  formatStep +: steps
+}
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 84061d83..93ad1a99 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -3,7 +3,5 @@ addSbtPlugin("org.scala-native" % "sbt-scala-native" % "0.4.3")
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.1.0")
 addSbtPlugin("org.portable-scala" % "sbt-scala-native-crossproject" % "1.1.0")
 addSbtPlugin("com.thoughtworks.sbt-api-mappings" % "sbt-api-mappings" % "3.0.0")
-addSbtPlugin("com.codecommit" % "sbt-github-actions" % "0.14.2")
-addSbtPlugin("com.github.sbt" % "sbt-ci-release" % "1.5.10")
-addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "1.0.1")
+addSbtPlugin("org.typelevel" % "sbt-typelevel-ci-release" % "0.4.3")
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.4.6")