This is better.

server/src/main/kotlin/ir/armor/tachidesk/impl/Extension.kt

@@ -50,10 +50,9 @@ object Extension {
     private val logger = KotlinLogging.logger {}
     private val applicationDirs by DI.global.instance<ApplicationDirs>()
 
-
     data class InstallableAPK(
-            val apkFilePath: String,
-            val pkgName: String
+        val apkFilePath: String,
+        val pkgName: String
     )
 
     suspend fun installExtension(pkgName: String): Int {
@@ -99,8 +98,8 @@ object Extension {
             val libVersion = packageInfo.versionName.substringBeforeLast('.').toDouble()
             if (libVersion < LIB_VERSION_MIN || libVersion > LIB_VERSION_MAX) {
                 throw Exception(
-                        "Lib version is $libVersion, while only versions " +
-                                "$LIB_VERSION_MIN to $LIB_VERSION_MAX are allowed"
+                    "Lib version is $libVersion, while only versions " +
+                        "$LIB_VERSION_MIN to $LIB_VERSION_MAX are allowed"
                 )
             }
 
@@ -241,7 +240,7 @@ object Extension {
 
         return getCachedImageResponse(saveDir, apkName) {
             network.client.newCall(
-                    GET(iconUrl)
+                GET(iconUrl)
             ).await()
         }
     }

server/src/main/kotlin/ir/armor/tachidesk/server/ServerSetup.kt

@@ -20,15 +20,15 @@ import org.kodein.di.singleton
 import org.slf4j.Logger
 import xyz.nulldev.androidcompat.AndroidCompat
 import xyz.nulldev.androidcompat.AndroidCompatInitializer
+import xyz.nulldev.ts.config.ApplicationRootDir
 import xyz.nulldev.ts.config.ConfigKodeinModule
 import xyz.nulldev.ts.config.GlobalConfigManager
-import xyz.nulldev.ts.config.tachideskRootDir
 import java.io.File
 
 private val logger = KotlinLogging.logger {}
 
 class ApplicationDirs(
-    val dataRoot: String = tachideskRootDir()
+    val dataRoot: String = ApplicationRootDir
 ) {
     val extensionsRoot = "$dataRoot/extensions"
     val thumbnailsRoot = "$dataRoot/thumbnails"
@@ -44,9 +44,11 @@ val androidCompat by lazy { AndroidCompat() }
 fun applicationSetup() {
     // Application dirs
     val applicationDirs = ApplicationDirs()
-    DI.global.addImport(DI.Module("Server") {
-        bind<ApplicationDirs>() with singleton { applicationDirs }
-    })
+    DI.global.addImport(
+        DI.Module("Server") {
+            bind<ApplicationDirs>() with singleton { applicationDirs }
+        }
+    )
 
     // make dirs we need
     listOf(
@@ -58,6 +60,7 @@ fun applicationSetup() {
         File(it).mkdirs()
     }
 
+    // register Tachidesk's config which is dubbed "ServerConfig"
     GlobalConfigManager.registerModule(
         ServerConfig.register(GlobalConfigManager.config)
     )