diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..476a2c5
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,11 @@
+root = true
+
+[*]
+trim_trailing_whitespace = true
+insert_final_newline = true
+indent_style = space
+indent_size = 2
+end_of_line = lf
+
+[*.md]
+trim_trailing_whitespace = false
diff --git a/.github/workflows/scala.yml b/.github/workflows/scala.yml
new file mode 100644
index 0000000..5bac6ec
--- /dev/null
+++ b/.github/workflows/scala.yml
@@ -0,0 +1,23 @@
+name: Scala CI
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-18.04
+    strategy:
+      matrix:
+        java: [8, 11, 15]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up JDK
+      uses: actions/setup-java@v1
+      with:
+        java-version: ${{ matrix.java }}
+
+    - name: Run Docker containers
+      run: docker-compose up -d
+
+    - name: Build
+      run: sbt scalafmtSbtCheck scalafmtCheck
diff --git a/.gitignore b/.gitignore
index a283220..cc6e8e9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,7 +2,7 @@
 *.log
 *~
 
-# sbt specific
+# sbt
 dist/*
 target/
 lib_managed/
@@ -10,17 +10,24 @@ src_managed/
 project/boot/
 project/plugins/project/
 
-# Scala-IDE specific
+# Scala-IDE
 .scala_dependencies
 .classpath
 .project
 .cache
 .settings
 
-# IntelliJ specific
+# IntelliJ
 .idea/
 .idea_modules/
 
-# Ensime
-.ensime
-.ensime_cache/
\ No newline at end of file
+# Metals
+.metals
+.bloop
+**/metals.sbt
+
+# Visual Studio Code
+.vscode
+
+# Docker
+docker
diff --git a/.scalafmt.conf b/.scalafmt.conf
index fcf0f6c..70cc842 100644
--- a/.scalafmt.conf
+++ b/.scalafmt.conf
@@ -1,11 +1,11 @@
-project.git = true
-version = 2.0.0
-maxColumn = 120
-docstrings = JavaDoc
-
-align.tokens = ["%", "%%", {code = "=>", owner = "Case"}]
-align.openParenCallSite = false
-align.openParenDefnSite = false
-continuationIndent.callSite = 2
-continuationIndent.defnSite = 2
-danglingParentheses = true
\ No newline at end of file
+project.git = true
+version = 2.4.2
+maxColumn = 120
+docstrings = JavaDoc
+
+align.tokens = ["%", "%%", {code = "=>", owner = "Case"}]
+align.openParenCallSite = false
+align.openParenDefnSite = false
+continuationIndent.callSite = 2
+continuationIndent.defnSite = 2
+danglingParentheses = true
diff --git a/LICENSE b/LICENSE
index ab60297..b442934 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2018 
+Copyright (c) 2018
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/README.md b/README.md
index 0b950ea..2b39e49 100644
--- a/README.md
+++ b/README.md
@@ -1,15 +1,30 @@
-# gitbucket-navlink-plugin
-GitBucket plugin which adds a link to navigation bar
-
-![NavLink settings](images/navlink.gif)
-
-## Compatibility
-
-Plugin version | GitBucket version
-:--------------|:--------------------
-1.1.X          | 4.32.0 -
-1.0.1          | 4.23.1 - 4.31.2
-
-## Build from source
-
-Run `sbt assembly` and copy generated `/target/scala-2.13/gitbucket-navlink-plugin-X.X.X.jar` to `~/.gitbucket/plugins/` (If the directory does not exist, create it by hand before copying the jar), or just run `sbt install`.
\ No newline at end of file
+# gitbucket-navlink-plugin ![Scala CI](https://github.com/SIkebe/gitbucket-navlink-plugin/workflows/Scala%20CI/badge.svg)
+GitBucket plugin which adds a link to navigation bar
+
+![NavLink settings](images/navlink.gif)
+
+## Compatibility
+
+Plugin version | GitBucket version
+:--------------|:--------------------
+1.2.X          | 4.35.0 -
+1.1.X          | 4.32.0 - 4.34.0
+1.0.1          | 4.23.1 - 4.31.2
+
+## Development
+
+```bash
+# Initialize GitBucket and PostgreSQL containers
+docker-compose up -d
+
+# Setup GITBUCKET_HOME
+# export GITBUCKET_HOME=/home/sikebe/git/github/gitbucket-navlink-plugin/docker
+export GITBUCKET_HOME=<path-to-repository>/docker
+
+# Build and copy assembly to GITBUCKET_HOME/plugins/
+sbt install
+```
+
+## Build and deploy
+
+Run `sbt assembly` and copy generated `/target/scala-2.13/gitbucket-navlink-plugin-X.X.X.jar` to `GITBUCKET_HOME/plugins/`.
diff --git a/build.sbt b/build.sbt
index 96ee294..93f4436 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,6 +1,6 @@
-name := "gitbucket-navlink-plugin"
-organization := "com.github.sikebe"
-version := "1.1.0"
-scalaVersion := "2.13.0"
-gitbucketVersion := "4.32.0"
-scalacOptions := Seq("-deprecation")
\ No newline at end of file
+name := "gitbucket-navlink-plugin"
+organization := "com.github.sikebe"
+version := "1.2.0"
+scalaVersion := "2.13.3"
+gitbucketVersion := "4.35.0"
+scalacOptions := Seq("-deprecation")
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..db8950f
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,30 @@
+version: '3.8'
+
+services:
+  gitbucket:
+    image: gitbucket/gitbucket:4
+    restart: always
+    ports:
+      - 8080:8080
+    volumes:
+     - ./docker:/gitbucket
+    depends_on:
+      - db
+    environment:
+      - GITBUCKET_DB_URL=jdbc:postgresql://db/gitbucket
+      - GITBUCKET_DB_USER=gitbucket
+      - GITBUCKET_DB_PASSWORD=gitbucket
+      - GITBUCKET_BASE_URL=http://localhost:8080
+      - GITBUCKET_HOME=./gitbucket
+    command: bash -c 'while !</dev/tcp/db/5432; do sleep 1; done; sleep 10; java -jar /opt/gitbucket.war'
+
+  db:
+    image: postgres:13.1-alpine
+    restart: always
+    ports:
+      - "5432:5432"
+    environment:
+      - POSTGRES_DB=gitbucket
+      - POSTGRES_USER=gitbucket
+      - POSTGRES_PASSWORD=gitbucket
+      - POSTGRES_INITDB_ARGS=--encoding=UTF-8 --locale=C
diff --git a/project/build.properties b/project/build.properties
index 7609b47..fc08cae 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version = 1.2.8
\ No newline at end of file
+sbt.version = 1.4.4
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 3330fb7..499de1b 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,2 +1,2 @@
-addSbtPlugin("io.github.gitbucket" % "sbt-gitbucket-plugin" % "1.5.0")
-addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.0.3")
\ No newline at end of file
+addSbtPlugin("io.github.gitbucket" % "sbt-gitbucket-plugin" % "1.5.0")
+addSbtPlugin("org.scalameta"       % "sbt-scalafmt"         % "2.4.2")
diff --git a/src/main/scala/Plugin.scala b/src/main/scala/Plugin.scala
index 4e1ea02..ebee451 100644
--- a/src/main/scala/Plugin.scala
+++ b/src/main/scala/Plugin.scala
@@ -11,20 +11,18 @@ class Plugin extends gitbucket.core.plugin.Plugin with NavLinkSettingsService {
   override val versions: List[Version] = List(
     new Version("1.0.0"),
     new Version("1.0.1"),
-    new Version("1.1.0")
+    new Version("1.1.0"),
+    new Version("1.2.0")
   )
 
   override val controllers = Seq(
     "/*" -> new NavLinkSettingsController()
   )
 
-  override val globalMenus = Seq(
-    (_: Context) => Some(Link("navlink", navLinkSettings.globalMenuName, navLinkSettings.globalMenuPath))
-  )
+  override val globalMenus =
+    Seq((_: Context) => Some(Link("navlink", navLinkSettings.globalMenuName, navLinkSettings.globalMenuPath)))
 
-  override val systemSettingMenus = Seq(
-    (_: Context) => Some(Link("navlink", "NavLink", "navlink/settings"))
-  )
+  override val systemSettingMenus = Seq((_: Context) => Some(Link("navlink", "NavLink", "navlink/settings")))
 
   val navLinkSettings = loadNavLinkSettings()
 }
diff --git a/src/main/scala/com/github/sikebe/navlink/controller/NavLinkSettingsController.scala b/src/main/scala/com/github/sikebe/navlink/controller/NavLinkSettingsController.scala
index 8f8fe10..2f11d25 100644
--- a/src/main/scala/com/github/sikebe/navlink/controller/NavLinkSettingsController.scala
+++ b/src/main/scala/com/github/sikebe/navlink/controller/NavLinkSettingsController.scala
@@ -35,7 +35,7 @@ trait NavLinkSettingsControllerBase extends ControllerBase {
 
     saveNavLinkSettings(form)
     reload(request.getServletContext(), loadSystemSettings(), request2Session(request).conn)
-    flash += "info" -> "Successfully updated NavLink."
+    flash.update("info", "Successfully updated NavLink.")
     redirect("/navlink/settings")
   })
 }
diff --git a/src/main/scala/com/github/sikebe/navlink/service/NavLinkSettingsService.scala b/src/main/scala/com/github/sikebe/navlink/service/NavLinkSettingsService.scala
index 459328b..496d76b 100644
--- a/src/main/scala/com/github/sikebe/navlink/service/NavLinkSettingsService.scala
+++ b/src/main/scala/com/github/sikebe/navlink/service/NavLinkSettingsService.scala
@@ -5,6 +5,7 @@ import java.io.File
 import gitbucket.core.util.Directory._
 import gitbucket.core.util.SyntaxSugars._
 import NavLinkSettingsService._
+import scala.util.Using
 
 trait NavLinkSettingsService {
 
@@ -14,17 +15,13 @@ trait NavLinkSettingsService {
     defining(new java.util.Properties()) { props =>
       props.setProperty(GlobalMenuName, settings.globalMenuName)
       props.setProperty(GlobalMenuPath, settings.globalMenuPath)
-      using(new java.io.FileOutputStream(NavLinkConf)) { out =>
-        props.store(out, null)
-      }
+      Using.resource(new java.io.FileOutputStream(NavLinkConf)) { out => props.store(out, null) }
     }
 
   def loadNavLinkSettings(): NavLinkSettings =
     defining(new java.util.Properties()) { props =>
       if (NavLinkConf.exists) {
-        using(new java.io.FileInputStream(NavLinkConf)) { in =>
-          props.load(in)
-        }
+        Using.resource(new java.io.FileInputStream(NavLinkConf)) { in => props.load(in) }
       }
       NavLinkSettings(
         getValue[String](props, GlobalMenuName, ""),
diff --git a/src/main/twirl/sikebe/gitbucket/navlink/settings.scala.html b/src/main/twirl/sikebe/gitbucket/navlink/settings.scala.html
index 06649fd..a9ffe5e 100644
--- a/src/main/twirl/sikebe/gitbucket/navlink/settings.scala.html
+++ b/src/main/twirl/sikebe/gitbucket/navlink/settings.scala.html
@@ -24,4 +24,4 @@
         </form>
     </div>
 </div>
-}}
\ No newline at end of file
+}}
diff --git a/src/main/twirl/sikebe/gitbucket/navlink/sidebar.scala.html b/src/main/twirl/sikebe/gitbucket/navlink/sidebar.scala.html
index ffefecc..aa3f23e 100644
--- a/src/main/twirl/sikebe/gitbucket/navlink/sidebar.scala.html
+++ b/src/main/twirl/sikebe/gitbucket/navlink/sidebar.scala.html
@@ -13,4 +13,4 @@
         </ul>
     </div>
 </div>
-@body
\ No newline at end of file
+@body