diff --git a/build.gradle b/build.gradle
index e5feb85..0e9b050 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,12 +1,31 @@
-apply plugin: 'java'
+allprojects {
+    apply plugin: 'java'
+    apply plugin: 'maven'
+    apply plugin: 'signing'
 
-sourceCompatibility = 1.7
-version = '0.0.1'
+    sourceCompatibility = 1.7
+    group = 'ch.dissem.jabit'
+    version = '0.1.0'
 
-repositories {
-    mavenCentral()
-}
+    repositories {
+        mavenCentral()
+    }
 
-dependencies {
-    testCompile 'junit:junit:4.11'
+    task javadocJar(type: Jar) {
+        classifier = 'javadoc'
+        from javadoc
+    }
+
+    task sourcesJar(type: Jar) {
+        classifier = 'sources'
+        from sourceSets.main.allSource
+    }
+
+    artifacts {
+        archives javadocJar, sourcesJar
+    }
+
+//    signing {
+//        sign configurations.archives
+//    }
 }
\ No newline at end of file
diff --git a/demo/build.gradle b/demo/build.gradle
index 3c7930f..ae7579e 100644
--- a/demo/build.gradle
+++ b/demo/build.gradle
@@ -6,17 +6,11 @@ task fatCapsule(type: FatCapsule) {
     applicationClass 'ch.dissem.bitmessage.demo.Main'
 }
 
-sourceCompatibility = 1.7
-version = '0.0.1'
-
-repositories {
-    mavenCentral()
-}
-
 dependencies {
     compile project(':domain')
     compile project(':networking')
     compile project(':repositories')
     compile 'org.slf4j:slf4j-simple:1.7.12'
+    compile 'args4j:args4j:2.32'
     testCompile 'junit:junit:4.11'
-}
\ No newline at end of file
+}
diff --git a/domain/build.gradle b/domain/build.gradle
index 4285926..215798a 100644
--- a/domain/build.gradle
+++ b/domain/build.gradle
@@ -1,12 +1,3 @@
-apply plugin: 'java'
-
-sourceCompatibility = 1.7
-version = '0.0.1'
-
-repositories {
-    mavenCentral()
-}
-
 dependencies {
     compile 'org.slf4j:slf4j-api:1.7.12'
     compile 'org.bouncycastle:bcprov-jdk15on:1.52'
diff --git a/domain/src/main/java/ch/dissem/bitmessage/BitmessageContext.java b/domain/src/main/java/ch/dissem/bitmessage/BitmessageContext.java
index 4b1b0b6..5414836 100644
--- a/domain/src/main/java/ch/dissem/bitmessage/BitmessageContext.java
+++ b/domain/src/main/java/ch/dissem/bitmessage/BitmessageContext.java
@@ -55,10 +55,8 @@ import static ch.dissem.bitmessage.utils.UnixTime.DAY;
  * <li>streams</li>
  * </ul>
  * The default implementations in the different module builds can be used.
- * </p>
  * <p>
  * The port defaults to 8444 (the default Bitmessage port)
- * </p>
  */
 public class BitmessageContext {
     public static final int CURRENT_VERSION = 3;
diff --git a/networking/build.gradle b/networking/build.gradle
index 0a8d301..3b5def4 100644
--- a/networking/build.gradle
+++ b/networking/build.gradle
@@ -1,12 +1,3 @@
-apply plugin: 'java'
-
-sourceCompatibility = 1.7
-version = '0.0.1'
-
-repositories {
-    mavenCentral()
-}
-
 dependencies {
     compile project(':domain')
     testCompile 'org.slf4j:slf4j-simple:1.7.12'
diff --git a/repositories/build.gradle b/repositories/build.gradle
index 4908b0b..231dbdb 100644
--- a/repositories/build.gradle
+++ b/repositories/build.gradle
@@ -1,12 +1,3 @@
-apply plugin: 'java'
-
-sourceCompatibility = 1.7
-version = '0.0.1'
-
-repositories {
-    mavenCentral()
-}
-
 dependencies {
     compile project(':domain')
     compile 'com.h2database:h2:1.4.187'