diff --git a/build-ivy.xml b/build-ivy.xml
new file mode 100644
index 0000000..7b06d6c
--- /dev/null
+++ b/build-ivy.xml
@@ -0,0 +1,102 @@
+<?xml version="1.0"?>
+<project xmlns:ivy="antlib:org.apache.ivy.ant" name="getdown" default="compile" basedir=".">
+  <property name="app.name" value="getdown"/>
+  <property name="revision" value="1.0"/>
+
+  <!-- downloads ivy if necessary and sets everything up -->
+  <property name="ivy.vers" value="2.1.0-rc2" />
+  <property name="ivy.jar.dir" value="${user.home}/.ant/lib" />
+  <condition property="ivy.exists"><available file="${ivy.jar.dir}/ivy.jar"/></condition>
+  <target name="-download-ivy" unless="ivy.exists">
+    <mkdir dir="${ivy.jar.dir}"/>
+    <get src="http://repo2.maven.org/maven2/org/apache/ivy/ivy/${ivy.vers}/ivy-${ivy.vers}.jar" 
+         dest="${ivy.jar.dir}/ivy.jar" usetimestamp="true"/>
+  </target>
+  <target name="-init-ivy" depends="-download-ivy">
+    <path id="ivy.lib.path"><fileset dir="${ivy.jar.dir}" includes="*.jar"/></path>
+    <taskdef resource="org/apache/ivy/ant/antlib.xml"
+             uri="antlib:org.apache.ivy.ant" classpathref="ivy.lib.path"/>
+    <ivy:cachepath pathid="compile.classpath" conf="compile" log="download-only"/>
+  </target>
+
+  <target name="check-ivy" depends="-init-ivy" description="Computes and prints Ivy classpath.">
+    <pathconvert pathsep="${line.separator}  " property="compile.str" refid="compile.classpath"/>
+    <echo>Compile classpath:</echo>
+    <echo>  ${compile.str}</echo>
+  </target>
+
+  <target name="proguard" depends="-init-ivy">
+    <!-- we need ant-contrib for if -->
+<!--
+    <taskdef resource="net/sf/antcontrib/antlib.xml">
+      <classpath>
+        <pathelement location="${deploy.dir}/lib/ant-contrib.jar"/>
+      </classpath>
+    </taskdef>
+-->
+
+    <!-- figure out where the Java rt.jar file lives -->
+<!--
+    <if><and><os family="mac"/><os family="unix"/></and><then>
+      <property name="rtClasses" value="${java.home}/../Classes/classes.jar"/>
+    </then><else>
+      <property name="rtClasses" value="${java.home}/lib/rt.jar"/>
+    </else></if>
+-->
+
+    <mkdir dir="target"/>
+
+    <taskdef resource="proguard/ant/task.properties" classpathref="compile.classpath"/>
+    <proguard>
+-injars dist/getdown.jar(!**/tools/**)
+-injars dist/getdown.jar(**/tools/*Patcher*,**/tools/Differ*)
+-injars dist/lib/jRegistryKey.jar(!META-INF/*)
+-injars dist/lib/samskivert.jar(
+  com/samskivert/Log.class,**/io/**,**/swing/**,**/net/**,**/text/**,**/util/**)
+-injars dist/lib/commons-codec.jar(!META-INF/*)
+
+-dontskipnonpubliclibraryclasses
+
+-outjars target/getdown-pro.jar
+
+-keep public class ca.beq.util.win32.registry.** {
+    *;
+}
+
+-keep public class com.threerings.getdown.launcher.Getdown {
+    public static void main (java.lang.String[]);
+}
+
+-keep public class com.threerings.getdown.launcher.GetdownApp {
+    public static void main (java.lang.String[]);
+}
+
+-keep public class com.threerings.getdown.launcher.GetdownApplet {
+    *;
+}
+
+-keep class * extends javax.swing.JApplet {
+    &lt;methods&gt;;
+}
+
+-keep public class com.threerings.getdown.launcher.GetdownAppletConfig {
+    *;
+}
+    </proguard>
+
+<!--
+    <taskdef name="weave" classname="com.rc.retroweaver.ant.RetroWeaverTask"
+             classpath="${deploy.dir}/lib/retroweaver-all-1.2.2.jar"/>
+    <weave inputjar="${basedir}/${deploy.dir}/${app.name}-pro.jar"
+           outputjar="${basedir}/${deploy.dir}/${app.name}-retro-pro.jar"/>
+-->
+    <!-- now combine the retroweaved jar file with the retroweaver runtime -->
+<!--
+    <unjar src="${deploy.dir}/lib/retroweaver-rt-1.2.2.jar"
+           dest="${deploy.dir}/rptmp"/>
+    <jar destfile="${deploy.dir}/${app.name}-retro-pro.jar"
+         manifest="lib/manifest.mf" basedir="${deploy.dir}/rptmp" update="true"/>
+    <delete dir="${deploy.dir}/rptmp"/>
+-->
+  </target>
+</project>
diff --git a/ivy.xml b/ivy.xml
new file mode 100644
index 0000000..202003a
--- /dev/null
+++ b/ivy.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ivy-module version="2.0" xmlns:mvn="http://ant.apache.org/ivy/maven">
+  <info organisation="com.threerings" module="getdown" revision="${revision}">
+    <description homepage="http://code.google.com/p/getdown"/>
+  </info>
+  <configurations>
+    <conf name="default" visibility="public" extends="runtime,master"/>
+    <conf name="master" visibility="public"/>
+    <conf name="provided" visibility="public"/>
+    <conf name="runtime" visibility="public"/>
+    <conf name="sources" visibility="public"/>
+    <conf name="javadoc" visibility="public"/>
+    <conf name="optional" visibility="public"/>
+    <conf name="compile" visibility="private" extends="runtime,provided,optional"/>
+    <conf name="test" visibility="private" extends="compile"/>
+  </configurations>
+  <publications>
+    <artifact type="jar"/>
+    <artifact type="source" ext="jar" mvn:classifier="sources"/>
+    <artifact type="javadoc" ext="jar" mvn:classifier="javadoc"/>
+  </publications>
+  <dependencies>
+    <dependency org="net.sf.proguard" name="proguard" rev="4.4" conf="compile->master(*)"/>
+    <dependency org="com.samskivert" name="samskivert" rev="1.0" conf="compile->master(*)"/>
+    <dependency org="commons-codec" name="commons-codec" rev="1.4" conf="compile->master(*)"/>
+    <dependency org="log4j" name="log4j" rev="1.2.15" conf="compile->master(*)"/>
+    <dependency org="net.sourceforge.retroweaver" name="retroweaver" rev="2.0.7" conf="compile->master(*)"/>
+    <dependency org="org.apache.ant" name="ant" rev="1.7.1" conf="compile->master(*)"/>
+  </dependencies>
+</ivy-module>
diff --git a/pom.xml b/pom.xml
new file mode 100644
index 0000000..8f2aad4
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,183 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.threerings</groupId>
+  <artifactId>getdown</artifactId>
+  <packaging>jar</packaging>
+  <version>1.0-SNAPSHOT</version>
+  <name>getdown</name>
+  <description>An application installer and updater.</description>
+  <url>http://code.google.com/p/getdown/</url>
+  <issueManagement>
+    <url>http://code.google.com/p/getdown/issues/list</url>
+  </issueManagement>
+
+  <parent>
+    <groupId>org.sonatype.oss</groupId>
+    <artifactId>oss-parent</artifactId>
+    <version>5</version>
+  </parent>
+
+  <licenses>
+    <license>
+      <name>GNU Lesser General Public License (LGPL), Version 2.1</name>
+      <url>http://www.fsf.org/licensing/licenses/lgpl.txt</url>
+      <distribution>repo</distribution>
+    </license>
+  </licenses>
+
+  <developers>
+    <developer>
+      <id>samskivert</id>
+      <name>Michael Bayne</name>
+      <email>mdb@samskivert.com</email>
+    </developer>
+  </developers>
+
+  <scm>
+    <connection>scm:svn:http://getdown.googlecode.com/svn/trunk/</connection>
+    <developerConnection>scm:svn:https://getdown.googlecode.com/svn/trunk/</developerConnection>
+    <url>http://getdown.googlecode.com/svn/trunk/</url>
+  </scm>
+
+  <dependencies>
+    <dependency>
+      <groupId>log4j</groupId>
+      <artifactId>log4j</artifactId>
+      <version>1.2.15</version>
+      <scope>compile</scope>
+      <optional>true</optional>
+      <exclusions>
+        <exclusion><groupId>javax.mail</groupId><artifactId>mail</artifactId></exclusion>
+        <exclusion><groupId>javax.jms</groupId><artifactId>jms</artifactId></exclusion>
+        <exclusion><groupId>com.sun.jdmk</groupId><artifactId>jmxtools</artifactId></exclusion>
+        <exclusion><groupId>com.sun.jmx</groupId><artifactId>jmxri</artifactId></exclusion>
+        <exclusion><groupId>oro</groupId><artifactId>oro</artifactId></exclusion>
+        <exclusion><groupId>junit</groupId><artifactId>junit</artifactId></exclusion>
+      </exclusions> 
+    </dependency>
+    <dependency>
+      <groupId>net.sf.proguard</groupId>
+      <artifactId>proguard</artifactId>
+      <version>4.4</version>
+      <scope>compile</scope>
+      <optional>true</optional>
+    </dependency>
+    <dependency>
+      <groupId>com.samskivert</groupId>
+      <artifactId>samskivert</artifactId>
+      <version>1.0</version>
+      <scope>compile</scope>
+      <optional>true</optional>
+    </dependency>
+    <dependency>
+      <groupId>commons-codec</groupId>
+      <artifactId>commons-codec</artifactId>
+      <version>1.4</version>
+      <scope>compile</scope>
+      <optional>true</optional>
+    </dependency>
+    <dependency>
+      <groupId>net.sourceforge.retroweaver</groupId>
+      <artifactId>retroweaver</artifactId>
+      <version>2.0.7</version>
+      <scope>compile</scope>
+      <optional>true</optional>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.ant</groupId>
+      <artifactId>ant</artifactId>
+      <version>1.7.1</version>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>jregistrykey</groupId>
+      <artifactId>jregistrykey</artifactId>
+      <version>1.0</version>
+      <scope>system</scope>
+      <systemPath>${project.basedir}/lib/jRegistryKey.jar</systemPath>
+    </dependency>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.8.1</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>RELEASE</version>
+        <configuration>
+          <source>1.5</source>
+          <target>1.5</target>
+          <fork>true</fork>
+          <showDeprecation>true</showDeprecation>
+          <showWarnings>true</showWarnings>
+          <!-- yes, those quoted spaces are a workaround sanctioned by the Maven idiocracy -->
+          <compilerArgument>-Xlint" "-Xlint:-serial" "-Xlint:-path</compilerArgument>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-resources-plugin</artifactId>
+        <version>RELEASE</version>
+        <configuration>
+          <encoding>UTF-8</encoding>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-surefire-plugin</artifactId>
+        <version>RELEASE</version>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-javadoc-plugin</artifactId>
+        <version>RELEASE</version>
+        <configuration>
+          <quiet>true</quiet>
+          <show>public</show>
+          <links>
+            <link>http://java.sun.com/products/javamail/javadocs/</link>
+            <link>http://download.oracle.com/javaee/1.2.1/api/</link>
+          </links>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-gpg-plugin</artifactId>
+        <version>RELEASE</version>
+        <executions>
+          <execution>
+            <id>sign-artifacts</id>
+            <phase>verify</phase>
+            <goals>
+              <goal>sign</goal>
+            </goals>
+          </execution>
+        </executions>
+        <configuration>
+          <keyname>mdb@samskivert.com</keyname>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-jar-plugin</artifactId>
+        <version>RELEASE</version>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-install-plugin</artifactId>
+        <version>RELEASE</version>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-deploy-plugin</artifactId>
+        <version>RELEASE</version>
+      </plugin>
+    </plugins>
+  </build>
+</project>