diff --git a/.travis.yml b/.travis.yml
index a38a717..3f6d27b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -22,4 +22,4 @@ android:
     - extra-google-m2repository
 
 script:
-   - ./gradlew build --stacktrace
+   - ./gradlew clean build -Pbuild=dev --stacktrace
diff --git a/app/build.gradle b/app/build.gradle
index 9720bea..51a1c97 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -36,6 +36,17 @@ android {
             resValue "string", "app_version",
                     "${defaultConfig.versionName}${versionNameSuffix}"
         }
+        dev {
+            minifyEnabled true
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+            resValue "string", "app_version",
+                    "${defaultConfig.versionName}"
+            debuggable true
+            jniDebuggable true
+            renderscriptDebuggable true
+            pseudoLocalesEnabled false
+            zipAlignEnabled true
+        }
     }
     dexOptions {
         preDexLibraries = false
@@ -55,6 +66,24 @@ def configSign() {
     }
 }
 
+def build_param = "${build}";
+
+if (build_param != "dev") {
+    //exclude production build
+    android.variantFilter { variant ->
+        if (variant.buildType.name.equals('dev')) {
+            variant.setIgnore(true);
+        }
+    }
+} else {
+    //exclude all except production build
+    android.variantFilter { variant ->
+        if (!variant.buildType.name.equals('dev')) {
+            variant.setIgnore(true);
+        }
+    }
+}
+
 dependencies {
     implementation fileTree(include: ['*.jar'], dir: 'libs')
     implementation 'androidx.appcompat:appcompat:1.0.0'
@@ -85,4 +114,4 @@ dependencies {
     implementation 'androidx.cardview:cardview:1.0.0'
     implementation 'org.sufficientlysecure:donations:2.6'
 }
-apply plugin: 'com.google.gms.google-services'
\ No newline at end of file
+apply plugin: 'com.google.gms.google-services'
diff --git a/app/src/dev/google-services.json b/app/src/dev/google-services.json
new file mode 100644
index 0000000..6e3891d
--- /dev/null
+++ b/app/src/dev/google-services.json
@@ -0,0 +1,51 @@
+{
+  "project_info": {
+    "project_number": "",
+    "project_id": ""
+  },
+  "client": [
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:123456789012:android:1234567890123456",
+        "android_client_info": {
+          "package_name": "javinator9889.bitcoinpools"
+        }
+      },
+      "oauth_client": [
+        {
+          "client_id": "",
+          "client_type": 3
+        },
+        {
+          "client_id": "",
+          "client_type": 1,
+          "android_info": {
+            "package_name": "javinator9889.bitcoinpools",
+            "certificate_hash": ""
+          }
+        }
+      ],
+      "api_key": [
+        {
+          "current_key": ""
+        }
+      ],
+      "services": {
+        "analytics_service": {
+          "status": 2,
+          "analytics_property": {
+            "tracking_id": ""
+          }
+        },
+        "appinvite_service": {
+          "status": 1,
+          "other_platform_oauth_client": []
+        },
+        "ads_service": {
+          "status": 1
+        }
+      }
+    }
+  ],
+  "configuration_version": "1"
+}