diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 21dd7ee..6195a25 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,10 +15,12 @@ on:
     tags: [v*]
 
 env:
-  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-  SONATYPE_USERNAME: ${{ secrets.SONATYPE_USERNAME }}
+  PGP_PASSPHRASE: ${{ secrets.PGP_PASSPHRASE }}
   SONATYPE_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }}
+  SONATYPE_CREDENTIAL_HOST: ${{ secrets.SONATYPE_CREDENTIAL_HOST }}
+  SONATYPE_USERNAME: ${{ secrets.SONATYPE_USERNAME }}
   PGP_SECRET: ${{ secrets.PGP_SECRET }}
+  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
 jobs:
   build:
@@ -27,7 +29,8 @@ jobs:
       matrix:
         os: [ubuntu-latest]
         scala: [2.12.15, 2.13.8, 3.1.1]
-        java: [adopt@1.8]
+        java: [temurin@8]
+        project: [rootJS, rootJVM]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (full)
@@ -35,10 +38,21 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Setup Java and Scala
-        uses: olafurpg/setup-scala@v13
+      - name: Download Java (temurin@8)
+        id: download-java-temurin-8
+        if: matrix.java == 'temurin@8'
+        uses: typelevel/download-java@v1
         with:
-          java-version: ${{ matrix.java }}
+          distribution: temurin
+          java-version: 8
+
+      - name: Setup Java (temurin@8)
+        if: matrix.java == 'temurin@8'
+        uses: actions/setup-java@v2
+        with:
+          distribution: jdkfile
+          java-version: 8
+          jdkFile: ${{ steps.download-java-temurin-8.outputs.jdkFile }}
 
       - name: Cache sbt
         uses: actions/cache@v2
@@ -53,17 +67,40 @@ 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: Check headers and formatting
+        if: matrix.java == 'temurin@8'
+        run: sbt 'project ${{ matrix.project }}' '++${{ matrix.scala }}' headerCheckAll scalafmtCheckAll 'project /' scalafmtSbtCheck
+
+      - name: scalaJSLink
+        if: matrix.project == 'rootJS'
+        run: sbt 'project ${{ matrix.project }}' '++${{ matrix.scala }}' Test/scalaJSLinkerResult
+
+      - name: Test
+        run: sbt 'project ${{ matrix.project }}' '++${{ matrix.scala }}' test
 
-      - run: sbt ++${{ matrix.scala }} ci
+      - 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/js/target core/jvm/target tests/js/target .jvm/target .native/target tests/jvm/target project/target
 
       - name: Compress target directories
-        run: tar cf targets.tar target core/js/target core/jvm/target project/target
+        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/js/target core/jvm/target tests/js/target .jvm/target .native/target tests/jvm/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.scala }}-${{ matrix.java }}
+          name: target-${{ matrix.os }}-${{ matrix.java }}-${{ matrix.scala }}-${{ matrix.project }}
           path: targets.tar
 
   publish:
@@ -74,7 +111,7 @@ jobs:
       matrix:
         os: [ubuntu-latest]
         scala: [3.1.1]
-        java: [adopt@1.8]
+        java: [temurin@8]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout current branch (full)
@@ -82,10 +119,21 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Setup Java and Scala
-        uses: olafurpg/setup-scala@v13
+      - name: Download Java (temurin@8)
+        id: download-java-temurin-8
+        if: matrix.java == 'temurin@8'
+        uses: typelevel/download-java@v1
         with:
-          java-version: ${{ matrix.java }}
+          distribution: temurin
+          java-version: 8
+
+      - name: Setup Java (temurin@8)
+        if: matrix.java == 'temurin@8'
+        uses: actions/setup-java@v2
+        with:
+          distribution: jdkfile
+          java-version: 8
+          jdkFile: ${{ steps.download-java-temurin-8.outputs.jdkFile }}
 
       - name: Cache sbt
         uses: actions/cache@v2
@@ -99,37 +147,76 @@ jobs:
             ~/Library/Caches/Coursier/v1
           key: ${{ runner.os }}-sbt-cache-v2-${{ hashFiles('**/*.sbt') }}-${{ hashFiles('project/build.properties') }}
 
-      - name: Download target directories (2.12.15)
+      - 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 (2.13.8, rootJS)
         uses: actions/download-artifact@v2
         with:
-          name: target-${{ matrix.os }}-2.12.15-${{ matrix.java }}
+          name: target-${{ matrix.os }}-${{ matrix.java }}-2.13.8-rootJS
 
-      - name: Inflate target directories (2.12.15)
+      - name: Inflate target directories (2.13.8, rootJS)
         run: |
           tar xf targets.tar
           rm targets.tar
 
-      - name: Download target directories (2.13.8)
+      - name: Download target directories (2.13.8, rootJVM)
         uses: actions/download-artifact@v2
         with:
-          name: target-${{ matrix.os }}-2.13.8-${{ matrix.java }}
+          name: target-${{ matrix.os }}-${{ matrix.java }}-2.13.8-rootJVM
 
-      - name: Inflate target directories (2.13.8)
+      - name: Inflate target directories (2.13.8, rootJVM)
         run: |
           tar xf targets.tar
           rm targets.tar
 
-      - name: Download target directories (3.1.1)
+      - name: Download target directories (3.1.1, rootJS)
         uses: actions/download-artifact@v2
         with:
-          name: target-${{ matrix.os }}-3.1.1-${{ matrix.java }}
+          name: target-${{ matrix.os }}-${{ matrix.java }}-3.1.1-rootJS
 
-      - name: Inflate target directories (3.1.1)
+      - name: Inflate target directories (3.1.1, rootJS)
+        run: |
+          tar xf targets.tar
+          rm targets.tar
+
+      - name: Download target directories (3.1.1, rootJVM)
+        uses: actions/download-artifact@v2
+        with:
+          name: target-${{ matrix.os }}-${{ matrix.java }}-3.1.1-rootJVM
+
+      - name: Inflate target directories (3.1.1, rootJVM)
         run: |
           tar xf targets.tar
           rm targets.tar
 
       - name: Import signing key
-        run: echo $PGP_SECRET | base64 -d | gpg --import
+        if: env.PGP_SECRET != '' && env.PGP_PASSPHRASE == ''
+        run: echo $PGP_SECRET | base64 -di | gpg --import
+
+      - name: Import signing key and strip passphrase
+        if: env.PGP_SECRET != '' && env.PGP_PASSPHRASE != ''
+        run: |
+          echo "$PGP_SECRET" | base64 -di > /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)
 
-      - run: sbt ++${{ matrix.scala }} release
+      - name: Publish
+        run: sbt '++${{ matrix.scala }}' tlRelease
diff --git a/.scalafmt.conf b/.scalafmt.conf
new file mode 100644
index 0000000..2a450f3
--- /dev/null
+++ b/.scalafmt.conf
@@ -0,0 +1,3 @@
+version = "3.4.3"
+runner.dialect = scala213Source3
+project.includePaths = [] # disables formatting
diff --git a/build.sbt b/build.sbt
index e90f085..8c32943 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,58 +1,19 @@
-import sbtcrossproject.CrossPlugin.autoImport.crossProject
-import sbtcrossproject.CrossPlugin.autoImport.CrossType
+ThisBuild / tlBaseVersion := "1.0"
 
-ThisBuild / baseVersion := "1.0"
-
-ThisBuild / organization := "org.typelevel"
-ThisBuild / organizationName := "Typelevel"
-
-ThisBuild / publishGithubUser := "mpilquist"
-ThisBuild / publishFullName := "Michael Pilquist"
+ThisBuild / developers += tlGitHubDev("mpilquist", "Michael Pilquist")
+ThisBuild / startYear := Some(2021)
 
 ThisBuild / crossScalaVersions := List("2.12.15", "2.13.8", "3.1.1")
+ThisBuild / tlVersionIntroduced := Map("3" -> "1.0.2")
 
-ThisBuild / spiewakCiReleaseSnapshots := true
-
-ThisBuild / spiewakMainBranches := List("main")
-
-ThisBuild / homepage := Some(url("https://github.com/typelevel/literally"))
-
-ThisBuild / licenses := List("Apache-2.0" -> url("http://www.apache.org/licenses/LICENSE-2.0"))
-
-ThisBuild / scmInfo := Some(
-  ScmInfo(
-    url("https://github.com/typelevel/literally"),
-    "git@github.com:typelevel/literally.git"
-  )
-)
-
-ThisBuild / testFrameworks += new TestFramework("munit.Framework")
-
-lazy val root = project
-  .in(file("."))
-  .aggregate(core.jvm, core.js, tests.jvm, tests.js)
-  .enablePlugins(NoPublishPlugin, SonatypeCiReleasePlugin)
+lazy val root = tlCrossRootProject.aggregate(core, tests)
 
 lazy val core = crossProject(JSPlatform, JVMPlatform)
   .settings(
     name := "literally",
     scalacOptions := scalacOptions.value.filterNot(_ == "-source:3.0-migration"),
-    Compile / unmanagedSourceDirectories ++= {
-      val major = if (isDotty.value) "-3" else "-2"
-      List(CrossType.Pure, CrossType.Full).flatMap(
-        _.sharedSrcDir(baseDirectory.value, "main").toList.map(f => file(f.getPath + major))
-      )
-    },
-    Test / unmanagedSourceDirectories ++= {
-      val major = if (isDotty.value) "-3" else "-2"
-      List(CrossType.Pure, CrossType.Full).flatMap(
-        _.sharedSrcDir(baseDirectory.value, "test").toList.map(f => file(f.getPath + major))
-      )
-    }
-  )
-  .settings(
     libraryDependencies ++= {
-      if (isDotty.value) Nil else List("org.scala-lang" % "scala-reflect" % scalaVersion.value % "provided")
+      if (tlIsScala3.value) Nil else List("org.scala-lang" % "scala-reflect" % scalaVersion.value % Provided)
     }
   )
 
@@ -62,26 +23,8 @@ lazy val tests = crossProject(JSPlatform, JVMPlatform)
   .settings(
     name := "tests",
     scalacOptions := scalacOptions.value.filterNot(_ == "-source:3.0-migration"),
-    Compile / unmanagedSourceDirectories ++= {
-      val major = if (isDotty.value) "-3" else "-2"
-      List(CrossType.Pure, CrossType.Full).flatMap(
-        _.sharedSrcDir(baseDirectory.value, "main").toList.map(f => file(f.getPath + major))
-      )
-    },
-    Test / unmanagedSourceDirectories ++= {
-      val major = if (isDotty.value) "-3" else "-2"
-      List(CrossType.Pure, CrossType.Full).flatMap(
-        _.sharedSrcDir(baseDirectory.value, "test").toList.map(f => file(f.getPath + major))
-      )
-    },
-    githubWorkflowArtifactUpload := false
-  )
-  .settings(
     libraryDependencies += "org.scalameta" %%% "munit" % "0.7.29" % Test,
     libraryDependencies ++= {
-      if (isDotty.value) Nil else List("org.scala-lang" % "scala-reflect" % scalaVersion.value % "provided")
+      if (tlIsScala3.value) Nil else List("org.scala-lang" % "scala-reflect" % scalaVersion.value % Provided)
     }
   )
-  .jsSettings(
-    scalaJSLinkerConfig ~= (_.withModuleKind(ModuleKind.CommonJSModule))
-  )
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 96ae982..b47e646 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,3 +1,2 @@
 addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.9.0")
-addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.1.0")
-addSbtPlugin("com.codecommit" % "sbt-spiewak-sonatype" % "0.22.1")
+addSbtPlugin("org.typelevel" % "sbt-typelevel" % "0.4.6")