diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 5376e7a8..91176a13 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -2,6 +2,10 @@ name: ci
 
 on:
   push:
+    branches:
+      - master
+    tags:
+      - '*'
   pull_request:
     branches:
       - main
@@ -49,7 +53,7 @@ jobs:
           distribution: 'temurin'
           java-version: 17
 
-      - run: ./mill -i "__.test" + generateTutorial + generateReference && git diff --exit-code
+      - run: ./mill -i "__.test" && ./mill -i generateTutorial + generateReference && git diff --exit-code
 
   check-scalafix:
     runs-on: ubuntu-latest
diff --git a/.mill-version b/.mill-version
new file mode 100644
index 00000000..ac454c6a
--- /dev/null
+++ b/.mill-version
@@ -0,0 +1 @@
+0.12.0
diff --git a/build.sc b/build.sc
index ce5623bd..94cb573e 100644
--- a/build.sc
+++ b/build.sc
@@ -1,7 +1,7 @@
 import $file.docs.generateDocs
 import $ivy.`de.tototec::de.tobiasroeser.mill.vcs.version::0.4.0`
 import $ivy.`com.github.lolgab::mill-mima::0.1.0`
-import $ivy.`com.goyeau::mill-scalafix::0.4.0`
+import $ivy.`com.goyeau::mill-scalafix::0.4.2`
 import de.tobiasroeser.mill.vcs.version.VcsVersion
 import com.goyeau.mill.scalafix.ScalafixModule
 import mill._, scalalib._, publish._
@@ -67,6 +67,7 @@ trait ScalaSql extends Common{ common =>
     def testFramework = "scalasql.UtestFramework"
 
     def forkArgs = Seq("-Duser.timezone=Asia/Singapore")
+    def forkEnv = Map("MILL_WORKSPACE_ROOT" -> T.workspace.toString())
   }
 
   private def indent(code: Iterable[String]): String =
@@ -212,13 +213,13 @@ trait ScalaSql extends Common{ common =>
 val generatedCodeHeader = "[//]: # (GENERATED SOURCES, DO NOT EDIT DIRECTLY)"
 def generateTutorial() = T.command {
   generateDocs.generateTutorial(
-    os.pwd / "scalasql" / "test" / "src" / "WorldSqlTests.scala",
-    os.pwd / "docs" / "tutorial.md"
+    T.workspace / "scalasql" / "test" / "src" / "WorldSqlTests.scala",
+    T.workspace / "docs" / "tutorial.md"
   )
 }
 def generateReference() = T.command {
   generateDocs.generateReference(
-    os.pwd / "docs" / "reference.md",
+    T.workspace / "docs" / "reference.md",
     (sources, config) =>
       mill.scalalib.scalafmt.ScalafmtWorkerModule
         .worker()
diff --git a/docs/generateDocs.sc b/docs/generateDocs.sc
index d32b96a1..5a1e6ef5 100644
--- a/docs/generateDocs.sc
+++ b/docs/generateDocs.sc
@@ -25,7 +25,7 @@ def generateTutorial(sourcePath: os.Path, destPath: os.Path) =  {
         case ("", _) => outputLines.append("")
 
         case (s"// +INCLUDE $rest", _) =>
-          os.read.lines(os.pwd / os.SubPath(rest)).foreach(outputLines.append)
+          os.read.lines(mill.api.WorkspaceRoot.workspaceRoot / os.SubPath(rest)).foreach(outputLines.append)
 
         case (s"//$rest", false) => outputLines.append(rest.stripPrefix(" "))
 
@@ -49,14 +49,14 @@ def generateTutorial(sourcePath: os.Path, destPath: os.Path) =  {
 }
 def generateReference(dest: os.Path, scalafmtCallback: (Seq[os.Path], os.Path) => Unit) =  {
   def dropExprPrefix(s: String) = s.split('.').drop(2).mkString(".")
-  val records = upickle.default.read[Seq[Record]](os.read.stream(os.pwd / "out" / "recordedTests.json"))
-  val suiteDescriptions = upickle.default.read[Map[String, String]](os.read.stream(os.pwd / "out" / "recordedSuiteDescriptions.json"))
+  val records = upickle.default.read[Seq[Record]](os.read.stream(mill.api.WorkspaceRoot.workspaceRoot / "out" / "recordedTests.json"))
+  val suiteDescriptions = upickle.default.read[Map[String, String]](os.read.stream(mill.api.WorkspaceRoot.workspaceRoot / "out" / "recordedSuiteDescriptions.json"))
     .map{case (k, v) => (dropExprPrefix(k), v)}
 
   val rawScalaStrs = records.flatMap(r => Seq(r.queryCodeString) ++ r.resultCodeString)
   val formattedScalaStrs = {
     val tmps = rawScalaStrs.map(os.temp(_, suffix = ".scala"))
-    scalafmtCallback(tmps, os.pwd / ".scalafmt.conf")
+    scalafmtCallback(tmps, mill.api.WorkspaceRoot.workspaceRoot / ".scalafmt.conf")
 
     tmps.map(os.read(_).trim)
   }
diff --git a/docs/tutorial.md b/docs/tutorial.md
index 34cd47f1..ba10f6a7 100644
--- a/docs/tutorial.md
+++ b/docs/tutorial.md
@@ -134,8 +134,8 @@ val dbClient = new DbClient.Connection(
 )
 
 val db = dbClient.getAutoCommitClientConnection
-db.updateRaw(os.read(os.pwd / "scalasql" / "test" / "resources" / "world-schema.sql"))
-db.updateRaw(os.read(os.pwd / "scalasql" / "test" / "resources" / "world-data.sql"))
+db.updateRaw(os.read(os.Path(sys.env("MILL_TEST_RESOURCE_DIR")) / "world-schema.sql"))
+db.updateRaw(os.read(os.Path(sys.env("MILL_TEST_RESOURCE_DIR")) / "world-data.sql"))
 
 ```
 We use `dbClient.getAutoCommitClientConnection` in order to create a client that
diff --git a/mill b/mill
index 41278e89..d03a045c 100755
--- a/mill
+++ b/mill
@@ -7,7 +7,7 @@
 set -e
 
 if [ -z "${DEFAULT_MILL_VERSION}" ] ; then
-  DEFAULT_MILL_VERSION=0.11.11
+  DEFAULT_MILL_VERSION=0.11.12
 fi
 
 if [ -z "$MILL_VERSION" ] ; then
@@ -53,7 +53,9 @@ if [ -z "$MILL_MAIN_CLI" ] ; then
 fi
 
 MILL_FIRST_ARG=""
-if [ "$1" = "--bsp" ] || [ "$1" = "-i" ] || [ "$1" = "--interactive" ] || [ "$1" = "--no-server" ] || [ "$1" = "--repl" ] || [ "$1" = "--help" ] ; then
+
+ # first arg is a long flag for "--interactive" or starts with "-i"
+if [ "$1" = "--bsp" ] || [ "${1#"-i"}" != "$1" ] || [ "$1" = "--interactive" ] || [ "$1" = "--no-server" ] || [ "$1" = "--repl" ] || [ "$1" = "--help" ] ; then
   # Need to preserve the first position of those listed options
   MILL_FIRST_ARG=$1
   shift
diff --git a/scalasql/test/src/UtestFramework.scala b/scalasql/test/src/UtestFramework.scala
index e443d044..de1d809c 100644
--- a/scalasql/test/src/UtestFramework.scala
+++ b/scalasql/test/src/UtestFramework.scala
@@ -26,12 +26,13 @@ class UtestFramework extends utest.runner.Framework {
   }
   override def teardown() = {
     println("Tearing down CustomFramework " + recordedTests.size)
+    val workspaceRoot = os.Path(sys.env("MILL_WORKSPACE_ROOT"))
     os.write.over(
-      os.pwd / "out" / "recordedTests.json",
+      workspaceRoot / "out" / "recordedTests.json",
       upickle.default.write(UtestFramework.recordedTests, indent = 4)
     )
     os.write.over(
-      os.pwd / "out" / "recordedSuiteDescriptions.json",
+      workspaceRoot / "out" / "recordedSuiteDescriptions.json",
       upickle.default.write(UtestFramework.recordedSuiteDescriptions, indent = 4)
     )
     recordedTests.clear()
diff --git a/scalasql/test/src/WorldSqlTests.scala b/scalasql/test/src/WorldSqlTests.scala
index 0bc472db..5433f709 100644
--- a/scalasql/test/src/WorldSqlTests.scala
+++ b/scalasql/test/src/WorldSqlTests.scala
@@ -127,8 +127,8 @@ object WorldSqlTests extends TestSuite {
     )
 
     val db = dbClient.getAutoCommitClientConnection
-    db.updateRaw(os.read(os.pwd / "scalasql" / "test" / "resources" / "world-schema.sql"))
-    db.updateRaw(os.read(os.pwd / "scalasql" / "test" / "resources" / "world-data.sql"))
+    db.updateRaw(os.read(os.Path(sys.env("MILL_TEST_RESOURCE_DIR")) / "world-schema.sql"))
+    db.updateRaw(os.read(os.Path(sys.env("MILL_TEST_RESOURCE_DIR")) / "world-data.sql"))
     // We use `dbClient.getAutoCommitClientConnection` in order to create a client that
     // will automatically run every SQL command in a new transaction and commit it. For
     // the majority of examples in this page, the exact transaction configuration doesn't
diff --git a/scalasql/test/src/utils/TestChecker.scala b/scalasql/test/src/utils/TestChecker.scala
index bc1b8468..86f31ec8 100644
--- a/scalasql/test/src/utils/TestChecker.scala
+++ b/scalasql/test/src/utils/TestChecker.scala
@@ -19,10 +19,10 @@ class TestChecker(
   val autoCommitConnection = dbClient.getAutoCommitClientConnection
   def reset() = {
     autoCommitConnection.updateRaw(
-      os.read(os.pwd / "scalasql" / "test" / "resources" / testSchemaFileName)
+      os.read(os.Path(sys.env("MILL_TEST_RESOURCE_DIR")) / testSchemaFileName)
     )
     autoCommitConnection.updateRaw(
-      os.read(os.pwd / "scalasql" / "test" / "resources" / testDataFileName)
+      os.read(os.Path(sys.env("MILL_TEST_RESOURCE_DIR")) / testDataFileName)
     )
   }