diff --git a/buildSrc/src/main/kotlin/custom/CustomApps.kt b/buildSrc/src/main/kotlin/custom/CustomApps.kt
index ab42518c2..db5cc7f62 100644
--- a/buildSrc/src/main/kotlin/custom/CustomApps.kt
+++ b/buildSrc/src/main/kotlin/custom/CustomApps.kt
@@ -165,29 +165,25 @@ object CustomApps {
     wikivoyagede
   )
 
+  fun createCustomAppFromJson(
+    name: String,
+    url: String,
+    enforcedLanguage: String,
+    displayName: String,
+    versionName: String?
+  ) = if (versionName == null) CustomApp(name, url, enforcedLanguage, displayName)
+  else CustomApp(name, url, enforcedLanguage, displayName, versionName)
+
   data class CustomApp(
     val name: String,
     val url: String,
     val enforcedLanguage: String,
     val displayName: String,
-    val versionCode: Int = formatDate("YYDDD0").toInt(),
     val versionName: String = parseVersionNameFromUrlOrUsePattern(url, "YYYY-MM")
   ) {
-    constructor(
-      name: String,
-      url: String,
-      enforcedLanguage: String,
-      displayName: String
-    ) : this(
-      name,
-      url,
-      enforcedLanguage,
-      displayName,
-      formatDate("YYDDD0").toInt(),
-      parseVersionNameFromUrlOrUsePattern(url, "YYYY-MM")
-    )
+    val versionCode: Int = formatDate("YYDDD0").toInt()
 
-    fun create(namedDomainObjectContainer: NamedDomainObjectContainer<ProductFlavor>) {
+    fun createFlavor(namedDomainObjectContainer: NamedDomainObjectContainer<ProductFlavor>) {
       namedDomainObjectContainer.create(this)
     }
   }
diff --git a/custom/dynamic_flavors.gradle b/custom/dynamic_flavors.gradle
index 627fc5953..17537098c 100644
--- a/custom/dynamic_flavors.gradle
+++ b/custom/dynamic_flavors.gradle
@@ -28,75 +28,17 @@ android {
   productFlavors {
     // Custom apps built from a json file
     map.each { name, directory ->
-      def jsonFile
-      if (project.hasProperty("jsonFile")) {
-        // Read json file from properties e.g command line
-        jsonFile = file(project.property("jsonFile"))
-      } else {
-        // If no file provided use the test file
-        jsonFile = file(directory + "/info.json")
-      }
-
+      def jsonFile = file(directory + "/info.json")
       if (jsonFile.exists()) {
         def parsedJson = new JsonSlurper().parseText(jsonFile.text)
-        new CustomApps.CustomApp(
-          parsedJson.name,
-          parsedJson.url,
+        CustomApps.INSTANCE.createCustomAppFromJson(
+          name,
+          parsedJson.zim_url,
           parsedJson.enforced_lang,
-          parsedJson.display_name
-        ).create(it)
+          parsedJson.name,
+          parsedJson.version_name
+        ).createFlavor(it)
       }
-      /*"$name" {
-        println "Configuring $name"
-        if (file(directory + "/build.gradle").exists()) {
-          apply from: directory + "/build.gradle"
-        }
-
-
-        // Set custom config from json
-        applicationId "$parsedJson.package"
-        buildConfigField "boolean", "HAS_EMBEDDED_ZIM", "$parsedJson.embed_zim"
-        def filename
-        if (parsedJson.zim_file.lastIndexOf("/") >= 0) {
-          filename = parsedJson.zim_file.substring(parsedJson.zim_file.lastIndexOf("/") + 1)
-        } else {
-          filename = parsedJson.zim_file
-        }
-        buildConfigField "String", "ZIM_FILE_NAME", "\"$filename\""
-        if (project.hasProperty("zim_file_size")) {
-          def length = Long.parseLong(project.property("zim_file_size"))
-          buildConfigField "long", "ZIM_FILE_SIZE", "${length}L"
-        } else {
-          long length = sourceFile.length()
-          buildConfigField "long", "ZIM_FILE_SIZE", "${length}L"
-        }
-        if (project.hasProperty("version_code")) {
-          def version_code = project.property("version_code")
-          versionCode version_code.toInteger()
-        } else {
-          versionCode parsedJson.version_code.toInteger()
-        }
-        if (project.hasProperty("version_name")) {
-          versionName project.property("version_name")
-        } else {
-          versionName parsedJson.version_name
-        }
-        if (project.hasProperty("content_version_code")) {
-          def content_version_code = project.property("content_version_code")
-          buildConfigField "int", "CONTENT_VERSION_CODE", "$content_version_code"
-        } else if (parsedJson.content_version_code != null) {
-          buildConfigField "int", "CONTENT_VERSION_CODE", "$parsedJson.content_version_code"
-        } else if (project.hasProperty('version_code')) {
-          def version_code = project.property('version_code')
-          buildConfigField "int", "CONTENT_VERSION_CODE", "$version_code"
-        } else if (parsedJson.version_code != null) {
-          buildConfigField "int", "CONTENT_VERSION_CODE", "$parsedJson.version_code"
-        }
-        buildConfigField "String", "ENFORCED_LANG", "\"$parsedJson.enforced_lang\""
-        buildConfigField "String", "ZIM_URL", "\"$parsedJson.zim_url\""
-        resValue "string", "app_name", "$parsedJson.app_name"
-        resValue "string", "app_search_string", "Search " + "$parsedJson.app_name"
-      }*/
     }
   }
 }
diff --git a/custom/src/customexample/info.json b/custom/src/customexample/info.json
index 94163a6b8..ce576faa3 100644
--- a/custom/src/customexample/info.json
+++ b/custom/src/customexample/info.json
@@ -1,7 +1,6 @@
 {
-  "name": "customexample",
-  "url": "http://download.kiwix.org/zim/wikipedia_fr_test.zim",
-  "enforced_lang": "en",
-  "display_name": "Test Custom App"
+  "name": "Test Custom App",
+  "zim_url": "http://download.kiwix.org/zim/wikipedia_fr_test.zim",
+  "enforced_lang": "en"
 }