diff --git a/bin/differ b/bin/differ
index f99b0f2..f48ed89 100755
--- a/bin/differ
+++ b/bin/differ
@@ -1,5 +1,4 @@
 #!/bin/sh
 
-ROOT=`dirname $0`
-ROOT=`cd $ROOT ; cd .. ; pwd`
-$ROOT/bin/runjava com.threerings.getdown.tools.Differ "$@"
+# we'll magically try to match dist/getdown.jar or target/getdown-1.x-SNAPSHOT.jar
+java -classpath */getdown*.jar com.threerings.getdown.tools.Differ "$@"
diff --git a/bin/patcher b/bin/patcher
new file mode 100755
index 0000000..e09f67d
--- /dev/null
+++ b/bin/patcher
@@ -0,0 +1,4 @@
+#!/bin/sh
+
+# we'll magically try to match dist/getdown.jar or target/getdown-1.x-SNAPSHOT.jar
+java -classpath */getdown*.jar com.threerings.getdown.tools.Patcher "$@"
diff --git a/bin/runjava b/bin/runjava
deleted file mode 100755
index 2c2b51a..0000000
--- a/bin/runjava
+++ /dev/null
@@ -1,107 +0,0 @@
-#!/usr/bin/perl -w
-
-use Getopt::Std;
-
-my $usage = "Usage: $0 [-p pid_file] [-r root_directory] args\n";
-
-# locations of stuff
-chomp($location = `dirname $0`);
-
-# get the server root by popping the /bin off of our parent directory
-@parts = split(/\//, $location);
-pop(@parts);
-my $root = join("/", @parts);
-
-my $jhome = $ENV{"JAVA_HOME"};
-
-# make sure JAVA_HOME is set
-if (!defined $jhome) {
-    warn "$0: Error: No JAVA_HOME specified!\n";
-    warn "\n";
-    warn "You must set your JAVA_HOME environment variable to the\n";
-    warn "the absolute path of your JDK installation. For example:\n";
-    warn "\n";
-    warn " % JAVA_HOME=/usr/local/jdk1.2\n";
-    warn " % export JAVA_HOME\n";
-    die "\n";
-}
-
-# make sure it's set to a directory
-if (! -d $jhome) {
-    die "$0: Can't find a java interpreter in '$jhome'.\n";
-}
-
-my $java = "$jhome/bin/java";
-my $jlib = "$jhome/lib/classes.zip";
-
-# determine our machine architecture
-my $ostype = `uname -s`;
-my $machtype = `uname -m`;
-chomp($ostype);
-chomp($machtype);
-my $arch = "$machtype-$ostype";
-
-# add our native libraries to the runtime library path
-my $libs = "$root/lib/$arch";
-my $libpath = $ENV{"LD_LIBRARY_PATH"};
-
-if (defined $libpath) {
-    $ENV{"LD_LIBRARY_PATH"} = "$libs:$libpath";
-} else {
-    $ENV{"LD_LIBRARY_PATH"} = $libs;
-}
-
-# put everything in our class path
-my $classpath = "-classpath $root/dist/classes";
-
-# add zip and jar files from our lib/ directory and the system lib/ directory
-my @dirs = ( "$root/dist/lib", $ENV{"JAVA_LIBS"} );
-foreach $dir (@dirs) {
-    next unless (defined $dir);
-    if (opendir(DIR, $dir)) {
-        foreach $lib (grep { /.(zip|jar)/ && -f "$dir/$_" } readdir(DIR)) {
-            $classpath .= ":$dir/$lib";
-        }
-        closedir DIR;
-    }
-}
-
-# finally add the standard classes
-$classpath = "$classpath:$jlib";
-
-# specify our application root (the resource manager needs this)
-my $rootarg = "-Dresource_url=file:$root/rsrc";
-
-my $pid_file = undef;
-my $i = 0;
-
-# strip out the -p and -r args (we'd use getopt() but the damned thing
-# provides no way of escaping arguments so that we can pass args to
-# runjava that get passed down to the JVM)
-for ($i = 0; $i < @ARGV; $i++) {
-    my $arg = $ARGV[$i];
-
-    # stop when we see -- (and strip it out because Java don't dig --)
-    if ($arg eq "--") {
-        splice(@ARGV, $i, 1);
-        last;
-    }
-
-    if ($arg eq "-p") {
-        $pid_file = $ARGV[$i+1];
-        splice(@ARGV, $i, 2);
-	$i -= 1; # decrement i so that things stay in sync
-
-    } elsif ($arg eq "-r") {
-        $rootarg = "-DDapplication.root=" . $ARGV[$i+1];
-        splice(@ARGV, $i, 2);
-	$i -= 1; # decrement i so that things stay in sync
-    }
-}
-
-# log the pid file if requested to do so
-print `echo $$ > $pid_file` if (defined $pid_file);
-
-my $cmd = "$java -mx256M $classpath $rootarg " . join(" ", @ARGV);
-# print "$cmd\n";
-exec($cmd);