diff --git a/build.sbt b/build.sbt
index c2ce057..6e845dd 100644
--- a/build.sbt
+++ b/build.sbt
@@ -4,7 +4,7 @@ import scala.language.postfixOps
 import scala.scalanative.build.*
 import scala.sys.process.*
 
-val scala3Version = "3.8.0-RC3"
+val scala3Version = "3.8.0-RC4"
 
 ThisBuild / scalaVersion := scala3Version
 
@@ -17,18 +17,18 @@ val sharedSettings = Seq(
     "-explain",
     "-explain-cyclic",
     "-source:future",
-    //"-Yexplicit-nulls",
+    // "-Yexplicit-nulls",
     "-Wvalue-discard",
     "-Wunused:all",
-    "-experimental",
-    //"-language:experimental.captureChecking",
-    //"-language:experimental.into",
-    //"-language:experimental.pureFunctions",
-    //"-language:experimental.modularity",
-    //"-language:experimental.multiSpreads",
-    //"-language:experimental.subCases",
-    //"-language:experimental.relaxedLambdaSyntax",
-    //"-language.experimental.separationChecking"
+    "-experimental"
+    // "-language:experimental.captureChecking",
+    // "-language:experimental.into",
+    // "-language:experimental.pureFunctions",
+    // "-language:experimental.modularity",
+    // "-language:experimental.multiSpreads",
+    // "-language:experimental.subCases",
+    // "-language:experimental.relaxedLambdaSyntax",
+    // "-language.experimental.separationChecking"
     // "-no-indent",
     // "-rewrite",
   ),
@@ -44,11 +44,11 @@ lazy val appRestart = inputKey[Unit]("run app")
 lazy val showPid = inputKey[Unit]("show app PID")
 
 lazy val `fast4s-common` =
-  crossProject(JSPlatform, JVMPlatform, NativePlatform).
-    crossType(CrossType.Full).
-    in(file("fast4s-common")).
-    settings(sharedSettings *).
-    settings(
+  crossProject(JSPlatform, JVMPlatform, NativePlatform)
+    .crossType(CrossType.Full)
+    .in(file("fast4s-common"))
+    .settings(sharedSettings *)
+    .settings(
       name := "fast4s-common",
       organization := "io.fast4s.common",
       libraryDependencies ++= Seq(
@@ -57,12 +57,12 @@ lazy val `fast4s-common` =
     )
 
 lazy val `fast4s-data` =
-  crossProject(JSPlatform, JVMPlatform, NativePlatform).
-    crossType(CrossType.Full).
-    in(file("fast4s-data")).
-    dependsOn(`fast4s-common`).
-    settings(sharedSettings *).
-    settings(
+  crossProject(JSPlatform, JVMPlatform, NativePlatform)
+    .crossType(CrossType.Full)
+    .in(file("fast4s-data"))
+    .dependsOn(`fast4s-common`)
+    .settings(sharedSettings *)
+    .settings(
       name := "fast4s-data",
       organization := "io.fast4s.data",
       libraryDependencies ++= Seq(
@@ -72,13 +72,13 @@ lazy val `fast4s-data` =
     )
 
 lazy val `fast4s-core` =
-  crossProject(JSPlatform, JVMPlatform, NativePlatform).
-    crossType(CrossType.Full).
-    in(file("fast4s-core")).
-    dependsOn(`fast4s-common`).
-    dependsOn(`fast4s-data`).
-    settings(sharedSettings *).
-    settings(
+  crossProject(JSPlatform, JVMPlatform, NativePlatform)
+    .crossType(CrossType.Full)
+    .in(file("fast4s-core"))
+    .dependsOn(`fast4s-common`)
+    .dependsOn(`fast4s-data`)
+    .settings(sharedSettings *)
+    .settings(
       name := "fast4s-core",
       organization := "io.fast4s.core",
       libraryDependencies ++= Seq(
@@ -88,12 +88,12 @@ lazy val `fast4s-core` =
     )
 
 lazy val `fast4s-api` =
-  crossProject(JSPlatform, JVMPlatform, NativePlatform).
-    crossType(CrossType.Full).
-    in(file("fast4s-api")).
-    dependsOn(`fast4s-core`).
-    settings(sharedSettings *).
-    settings(
+  crossProject(JSPlatform, JVMPlatform, NativePlatform)
+    .crossType(CrossType.Full)
+    .in(file("fast4s-api"))
+    .dependsOn(`fast4s-core`)
+    .settings(sharedSettings *)
+    .settings(
       name := "fast4s-api",
       organization := "io.fast4s.api",
       libraryDependencies ++= Seq(
@@ -103,92 +103,118 @@ lazy val `fast4s-api` =
     )
 
 lazy val `fast4s-beast` =
-  crossProject(JSPlatform, JVMPlatform, NativePlatform).
-  crossType(CrossType.Full).
-  in(file("fast4s-beast")).
-  dependsOn(`fast4s-core`).
-  settings(sharedSettings *).
-  settings(
-    name := "fast4s-beast",
-    organization := "io.fast4s.backend.beast",
-    libraryDependencies ++= Seq(
-      "org.scalatest" %%% "scalatest" % "3.2.19" % "test"
+  crossProject(JSPlatform, JVMPlatform, NativePlatform)
+    .crossType(CrossType.Full)
+    .in(file("fast4s-beast"))
+    .dependsOn(`fast4s-core`)
+    .settings(sharedSettings *)
+    .settings(
+      name := "fast4s-beast",
+      organization := "io.fast4s.backend.beast",
+      libraryDependencies ++= Seq(
+        "org.scalatest" %%% "scalatest" % "3.2.19" % "test"
+      )
     )
-  )
 
 lazy val `fast4s-example` =
-  crossProject(JSPlatform, JVMPlatform, NativePlatform).
-  crossType(CrossType.Full).
-  in(file("fast4s-example")).
-  dependsOn(`fast4s-beast`).
-  dependsOn(`fast4s-api`).
-  settings(sharedSettings *).
-  settings(
-    name := "fast4s-example",
-    organization := "io.fast4s.example",
-    libraryDependencies ++= Seq(
-      "io.decoda" %%% "decoda" % "0.0.1",
-      "org.scalatest" %%% "scalatest" % "3.2.19" % "test"
-    ),
-  ).
-  nativeSettings(
-    nativeConfig ~= { c =>
-      c.withLTO(LTO.none) // thin
-        .withMode(Mode.debug) // releaseFast
-        .withGC(GC.immix)
-    },
-    appStop := {
-      val logger: TaskStreams = streams.value
-      val shell: Seq[String] = if (sys.props("os.name").contains("Windows")) Seq("cmd", "/c") else Seq("bash", "-c")
-      val cmdGetPid = Seq(
-        "ps", "-ef", "|", "grep", name.value, "|", "grep", "-v", "grep", "|", "awk", "'{print $2}'"
-      ).mkString(" ")
-
-      //logger.log.info(s"execute: ${cmdGetPid.mkString(" ")}")
-      val pid = ((shell :+ cmdGetPid) !!)
-      if (pid.nonEmpty) {
-
-        logger.log.info(s"PID=$pid")
+  crossProject(JSPlatform, JVMPlatform, NativePlatform)
+    .crossType(CrossType.Full)
+    .in(file("fast4s-example"))
+    .dependsOn(`fast4s-beast`)
+    .dependsOn(`fast4s-api`)
+    .settings(sharedSettings *)
+    .settings(
+      name := "fast4s-example",
+      organization := "io.fast4s.example",
+      libraryDependencies ++= Seq(
+        "io.decoda" %%% "decoda" % "0.0.1",
+        "org.scalatest" %%% "scalatest" % "3.2.19" % "test"
+      )
+    )
+    .nativeSettings(
+      nativeConfig ~= { c =>
+        c.withLTO(LTO.none) // thin
+          .withMode(Mode.debug) // releaseFast
+          .withGC(GC.immix)
+      },
+      appStop := {
+        val logger: TaskStreams = streams.value
+        val shell: Seq[String] =
+          if (sys.props("os.name").contains("Windows")) Seq("cmd", "/c")
+          else Seq("bash", "-c")
+        val cmdGetPid = Seq(
+          "ps",
+          "-ef",
+          "|",
+          "grep",
+          name.value,
+          "|",
+          "grep",
+          "-v",
+          "grep",
+          "|",
+          "awk",
+          "'{print $2}'"
+        ).mkString(" ")
 
+        // logger.log.info(s"execute: ${cmdGetPid.mkString(" ")}")
+        val pid = ((shell :+ cmdGetPid) !!)
+        if (pid.nonEmpty) {
+
+          logger.log.info(s"PID=$pid")
+
+          val cmd = Seq(
+            "kill",
+            "-s",
+            "9",
+            pid
+          ).mkString(" ")
+
+          val result = ((shell :+ cmd) ! logger.log)
+          if (result == 0) {
+            logger.log.success(s"stop app successful")
+          } else {
+            logger.log.success("stop app failure")
+          }
+        } else {
+          logger.log.info("app is not running")
+        }
+      },
+      showPid := {
+        val logger: TaskStreams = streams.value
+        val shell: Seq[String] =
+          if (sys.props("os.name").contains("Windows")) Seq("cmd", "/c")
+          else Seq("bash", "-c")
         val cmd = Seq(
-          "kill", "-s", "9", pid
+          "ps",
+          "-ef",
+          "|",
+          "grep",
+          name.value,
+          "|",
+          "grep",
+          "-v",
+          "grep",
+          "|",
+          "awk",
+          "'{print $2}'"
         ).mkString(" ")
 
-        val result = ((shell :+ cmd) ! logger.log)
-        if(result == 0){
-          logger.log.success(s"stop app successful")
+        // logger.log.info(s"execute: ${cmd.mkString(" ")}")
+        val pid = (shell :+ cmd) !!
+
+        if (pid.nonEmpty) {
+          logger.log.info(s"PID=$pid")
         } else {
-          logger.log.success("stop app failure")
+          logger.log.info(s"pid not found")
         }
-      } else {
-        logger.log.info("app is not running")
-      }
-    },
-
-    showPid := {
-      val logger: TaskStreams = streams.value
-      val shell: Seq[String] = if (sys.props("os.name").contains("Windows")) Seq("cmd", "/c") else Seq("bash", "-c")
-      val cmd = Seq(
-        "ps", "-ef", "|", "grep", name.value, "|", "grep", "-v", "grep", "|", "awk", "'{print $2}'"
-      ).mkString(" ")
-
-      //logger.log.info(s"execute: ${cmd.mkString(" ")}")
-      val pid = (shell :+ cmd) !!
-
-      if(pid.nonEmpty){
-        logger.log.info(s"PID=$pid")
-      }else{
-        logger.log.info(s"pid not found")
+      },
+      appRestart := {
+        val logger: TaskStreams = streams.value
+        logger.log.info("app restart..")
+        appStop.evaluated
+        (Compile / run).evaluated
       }
-    },
-    appRestart := {
-      val logger: TaskStreams = streams.value
-      logger.log.info("app restart..")
-      appStop.evaluated
-      (Compile / run).evaluated
-    }
-  )
-
+    )
 
 addCommandAlias("run", "app/appStart")
-