diff --git a/README.md b/README.md
index 67d9627..cc81c79 100644
--- a/README.md
+++ b/README.md
@@ -167,22 +167,3 @@ The `MultiStreamChannel` lets you connect multiple clients to a single master ch
     $ch1->send($data);
     $rcvd = $ch2->receive();
 
-### Buses
-
-Buses are high-level abstractions of channels, implementing limited rpc with handling of
-return values.
-
-    $master = new Master();
-
-    $client = $master->createClient();
-    $client->export("/db/updateindex", function ($schema) {
-        // Update the index
-        return true;
-    });
-
-    $other = $master->createClient();
-    $other->call("/db/updateindex", "*")->then(function ($status) {
-        if ($status === true) {
-            echo "Index updated!\n";
-        }
-    });
diff --git a/examples/bus.php b/examples/bus.php
deleted file mode 100644
index 13cdef2..0000000
--- a/examples/bus.php
+++ /dev/null
@@ -1,28 +0,0 @@
-<?php
-
-require_once __DIR__."/../vendor/autoload.php";
-
-use NoccyLabs\Ipc\Interop\Bus\Master;
-
-
-$master = new Master();
-
-$client1 = $master->createClient();
-$client1->addListener(function ($msg) use ($client1) {
-    printf("channel1: %s\n", json_encode($msg));
-    $client1->call("/channel2/hello", "channel1")->then(function ($ret) {
-        printf("channel1: %s\n", $ret);
-    });
-});
-$client2 = $master->createClient();
-$client2->addListener(function ($msg) {
-    printf("channel2: %s\n", json_encode($msg));
-});
-$client2->export("/channel2/hello", function ($name) {
-    return sprintf("Hello, %s", $name);
-});
-
-$client1->send("hello world");
-for ($n = 0; $n < 10; $n++) {
-    sleep(1);
-}
\ No newline at end of file
diff --git a/src/Interop/Async/Promise.php b/src/Interop/Async/Promise.php
deleted file mode 100644
index 8a2ec33..0000000
--- a/src/Interop/Async/Promise.php
+++ /dev/null
@@ -1,20 +0,0 @@
-<?php
-
-namespace NoccyLabs\Ipc\Interop\Async;
-
-
-class Promise
-{
-    private $then;
-
-    public function then(callable $then)
-    {
-        $this->then = $then;
-    }
-
-    public function invoke(...$args)
-    {
-        call_user_func($this->then, ...$args);
-    }
-    
-}
diff --git a/src/Interop/Bus/Client.php b/src/Interop/Bus/Client.php
deleted file mode 100644
index 790b324..0000000
--- a/src/Interop/Bus/Client.php
+++ /dev/null
@@ -1,104 +0,0 @@
-<?php
-
-namespace NoccyLabs\Ipc\Interop\Bus;
-
-use NoccyLabs\Ipc\Interop\Channel\ChannelInterface;
-use NoccyLabs\Ipc\Interop\Channel\MultiStreamChannel;
-use NoccyLabs\Ipc\Interop\Async\Timer;
-use NoccyLabs\Ipc\Interop\Async\Promise;
-
-class Client
-{
-    /** @var ChannelInterface $channel */
-    protected $channel;
-
-    protected $listeners = [];
-
-    protected $promises = [];
-
-    protected $exports = [];
-
-    /**
-     * Constructor
-     */
-    public function __construct(ChannelInterface $channel)
-    {
-        $this->channel = $channel;
-        $this->timer = new Timer([ $this, "update" ]);
-    }
-
-    public function update()
-    {
-        while ($msg = $this->channel->receive()) {
-            if (!array_key_exists('op', $msg)) {
-                fprintf(STDERR, "Warning: Frame missing op -- %s\n", json_encode($msg));
-                continue;
-            }
-            switch ($msg['op']) {
-                case 'retn':
-                    $id = $msg['id'];
-                    if (!array_key_exists($id, $this->promises)) {
-                        continue;
-                    }
-                    $promise = $this->promises[$id];
-                    $promise->invoke($msg['ret']);
-                    unset($this->promises[$id]);
-                    continue;
-                case 'call':
-                    $id = $msg['id'];
-                    $obj = $msg['obj'];
-                    if (!array_key_exists($obj, $this->exports)) {
-                        continue;
-                    }
-                    $ret = call_user_func($this->exports[$obj], ...$msg['arg']);
-                    $frame = [
-                        'op' => 'retn',
-                        'id' => $id,
-                        'ret' => $ret
-                    ];
-                    $this->channel->send($frame);
-                    continue;
-                case 'msg':
-                default:
-                    foreach ($this->listeners as $listener) {
-                        call_user_func($listener, $msg);
-                    }
-            }
-        }
-    }
-
-    public function addListener(callable $handler)
-    {
-        $this->listeners[] = $handler;
-    }
-
-    public function export($path, callable $function)
-    {
-        $this->exports[$path] = $function;
-    }
-
-    public function send($data)
-    {
-        $frame = [
-            'op' => 'msg',
-            'msg' => $data
-        ];
-        $this->channel->send($frame);
-    }
-
-    public function call($path, ...$args)
-    {
-        $promise = new Promise();
-
-        $rid = uniqid(md5($path),true);
-        $frame = [
-            'op' => 'call',
-            'id' => $rid,
-            'obj' => $path,
-            'arg' => $args,
-        ];
-        $this->promises[$rid] = $promise;
-        $this->channel->send($frame);
-        return $promise;
-    }
-}
\ No newline at end of file
diff --git a/src/Interop/Bus/Master.php b/src/Interop/Bus/Master.php
deleted file mode 100644
index 3db8378..0000000
--- a/src/Interop/Bus/Master.php
+++ /dev/null
@@ -1,40 +0,0 @@
-<?php
-
-namespace NoccyLabs\Ipc\Interop\Bus;
-
-use NoccyLabs\Ipc\Interop\Channel\ChannelInterface;
-use NoccyLabs\Ipc\Interop\Channel\MultiStreamChannel;
-use NoccyLabs\Ipc\Interop\Async\Timer;
-
-class Master
-{
-    /** @var ChannelInterface $channel */
-    protected $channel;
-
-    /**
-     * Constructor
-     */
-    public function __construct()
-    {
-        $this->channel = new MultiStreamChannel();
-
-        $this->timer = new Timer([ $this, "update" ]);
-    }
-
-    public function createClient() : Client
-    {
-        /** @var ChannelInterface $channel */
-        $channel = $this->channel->createClient();
-
-        $client = new Client($channel);
-        return $client;
-    }
-
-    public function update()
-    {
-        while ($msg = $this->channel->receive()) {
-            $this->channel->send($msg);
-        }
-    }
-
-}
\ No newline at end of file