diff --git a/.scalafmt.conf b/.scalafmt.conf
new file mode 100644
index 00000000..c3220981
--- /dev/null
+++ b/.scalafmt.conf
@@ -0,0 +1,15 @@
+version = "2.3.0"
+
+align = most
+#align.arrowEnumeratorGenerator = true
+
+maxColumn = 100
+
+rewrite.rules = [
+  AvoidInfix
+  RedundantBraces
+  RedundantParens
+  AsciiSortImports
+  PreferCurlyFors
+  SortModifiers
+]
diff --git a/build.sbt b/build.sbt
index cf6055ba..42415808 100644
--- a/build.sbt
+++ b/build.sbt
@@ -3,6 +3,8 @@ import scala.sys.process._
 import com.typesafe.sbt.SbtGit.GitKeys._
 import docspell.build._
 
+val elmCompileMode = settingKey[ElmCompileMode]("How to compile elm sources")
+
 val sharedSettings = Seq(
   organization := "com.github.eikek",
   scalaVersion := "2.13.1",
@@ -31,12 +33,14 @@ val testSettings = Seq(
 )
 
 val elmSettings = Seq(
+  elmCompileMode := ElmCompileMode.Debug,
   Compile/resourceGenerators += Def.task {
     compileElm(streams.value.log
       , (Compile/baseDirectory).value
       , (Compile/resourceManaged).value
       , name.value
-      , version.value)
+      , version.value
+      , elmCompileMode.value)
   }.taskValue,
   watchSources += Watched.WatchSource(
     (Compile/sourceDirectory).value/"elm"
@@ -381,10 +385,11 @@ def copyWebjarResources(src: Seq[File], base: File, artifact: String, version: S
   }
 }
 
-def compileElm(logger: Logger, wd: File, outBase: File, artifact: String, version: String): Seq[File] = {
+def compileElm(logger: Logger, wd: File, outBase: File, artifact: String, version: String, mode: ElmCompileMode): Seq[File] = {
   logger.info("Compile elm files ...")
   val target = outBase/"META-INF"/"resources"/"webjars"/artifact/version/"docspell-app.js"
-  val proc = Process(Seq("elm", "make", "--output", target.toString) ++ Seq(wd/"src"/"main"/"elm"/"Main.elm").map(_.toString), Some(wd))
+  val cmd = Seq("elm", "make") ++ mode.flags ++ Seq("--output", target.toString)
+  val proc = Process(cmd ++ Seq(wd/"src"/"main"/"elm"/"Main.elm").map(_.toString), Some(wd))
   val out = proc.!!
   logger.info(out)
   Seq(target)
diff --git a/elm-analyse.json b/elm-analyse.json
index e1ba6c56..f480c705 100644
--- a/elm-analyse.json
+++ b/elm-analyse.json
@@ -1,5 +1,8 @@
 {
     "excludedPaths": [
-        "modules/webapp/target/elm-src"
-    ]
+        "modules/webapp/target/elm-src/"
+    ],
+    "checks" : {
+        "ImportAll": false
+    }
 }
diff --git a/elm-package.json b/elm-package.json
new file mode 120000
index 00000000..eb4d89bd
--- /dev/null
+++ b/elm-package.json
@@ -0,0 +1 @@
+elm.json
\ No newline at end of file
diff --git a/project/ElmCompileMode.scala b/project/ElmCompileMode.scala
new file mode 100644
index 00000000..f7cafbf5
--- /dev/null
+++ b/project/ElmCompileMode.scala
@@ -0,0 +1,14 @@
+trait ElmCompileMode {
+  def flags: Seq[String]
+}
+object ElmCompileMode {
+  case object Production extends ElmCompileMode {
+    val flags = Seq("--optimize")
+  }
+  case object Debug extends ElmCompileMode {
+    val flags = Seq("--debug")
+  }
+  case object Dev extends ElmCompileMode {
+    val flags = Seq.empty
+  }
+}
diff --git a/project/plugins.sbt b/project/plugins.sbt
index c6ff1545..2f59529d 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,7 +1,11 @@
-addSbtPlugin("com.github.eikek" % "sbt-openapi-schema" % "0.5.0")
-addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.9.0")
-addSbtPlugin("com.typesafe.sbt" % "sbt-git" % "1.0.0")
-addSbtPlugin("io.spray" % "sbt-revolver" % "0.9.1")
-addSbtPlugin("com.typesafe.sbt" % "sbt-native-packager" % "1.5.2")
-addSbtPlugin("com.jsuereth" % "sbt-pgp" % "2.0.1")
 addSbtPlugin("com.47deg" % "sbt-microsites" % "0.9.2")
+addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.9.0")
+addSbtPlugin("com.github.eikek" % "sbt-openapi-schema" % "0.5.0")
+addSbtPlugin("com.github.gseitz" % "sbt-release" % "1.0.12")
+addSbtPlugin("com.jsuereth" % "sbt-pgp" % "2.0.1")
+addSbtPlugin("com.typesafe.sbt" % "sbt-git" % "1.0.0")
+addSbtPlugin("com.typesafe.sbt" % "sbt-native-packager" % "1.5.2")
+addSbtPlugin("io.spray" % "sbt-revolver" % "0.9.1")
+addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.0.3")
+addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.3.0")
+addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.8.1")