diff --git a/README.md b/README.md
index 27e612b..a412190 100644
--- a/README.md
+++ b/README.md
@@ -50,6 +50,30 @@ docker run \
 
 Bonob will now auto-register itself with sonos on startup, updating the registration if the configuration has changed.  Bonob should show up in the "Services" list on http://localhost:3000
 
+
+### Running bonob on a different network to your sonos devices.
+Start bonob without sonos discovery or registration, ie.
+```
+docker run \
+    -e BONOB_PORT=4534 \
+    -e BONOB_WEB_ADDRESS=http://my-bonob-service:4534 \
+    -e BONOB_SONOS_AUTO_REGISTER=false \
+    -e BONOB_SONOS_DEVICE_DISCOVERY=false \
+    -p 4534 \
+    simojenki/bonob
+```
+
+Run bonob registration within the network that contains your sonos devices, using the same BONOB_WEB_ADDRESS and discovery and registration enabled
+```
+docker run \
+    -e BONOB_PORT=4534 \
+    -e BONOB_WEB_ADDRESS=http://my-bonob-service:4534 \
+    -e BONOB_SONOS_AUTO_REGISTER=true \
+    -e BONOB_SONOS_DEVICE_DISCOVERY=true \
+    simojenki/bonob registrar
+```
+
+
 ## Configuration
 
 item | default value | description
diff --git a/src/app.ts b/src/app.ts
index 07c01b4..011da3f 100644
--- a/src/app.ts
+++ b/src/app.ts
@@ -1,35 +1,41 @@
-import { hostname } from "os";
-import sonos, { bonobService } from "./sonos";
 import server from "./server";
 import logger from "./logger";
-import { DEFAULT, Navidrome, appendMimeTypeToClientFor } from "./navidrome";
+import { appendMimeTypeToClientFor, DEFAULT, Navidrome } from "./navidrome";
 import encryption from "./encryption";
 import { InMemoryAccessTokens, sha256 } from "./access_tokens";
 import { InMemoryLinkCodes } from "./link_codes";
+import config from "./config";
+import sonos, { bonobService } from "./sonos";
 
-const PORT = +(process.env["BONOB_PORT"] || 4534);
-const WEB_ADDRESS =
-  process.env["BONOB_WEB_ADDRESS"] || `http://${hostname()}:${PORT}`;
-
-if (WEB_ADDRESS.match("localhost")) {
-  logger.error("BONOB_WEB_ADDRESS containing localhost is almost certainly incorrect, sonos devices will not be able to communicate with bonob using localhost, please specify either public IP or DNS entry");
-  process.exit(1);
-} 
-
-const SONOS_DEVICE_DISCOVERY =
-  (process.env["BONOB_SONOS_DEVICE_DISCOVERY"] || "true") == "true";
-const SONOS_SEED_HOST = process.env["BONOB_SONOS_SEED_HOST"];
+logger.info(
+  `Starting bonob with config ${JSON.stringify(config)}`
+);
 
 const bonob = bonobService(
-  process.env["BONOB_SONOS_SERVICE_NAME"] || "bonob",
-  Number(process.env["BONOS_SONOS_SERVICE_ID"] || "246"),
-  WEB_ADDRESS,
+  config.sonos.serviceName,
+  config.sonos.sid,
+  config.webAddress,
   "AppLink"
 );
-const secret = process.env["BONOB_SECRET"] || "bonob";
 
-const sonosSystem = sonos(SONOS_DEVICE_DISCOVERY, SONOS_SEED_HOST);
-if (process.env["BONOB_SONOS_AUTO_REGISTER"] == "true") {
+const sonosSystem = sonos(config.sonos.deviceDiscovery, config.sonos.seedHost);
+
+const streamUserAgent = config.navidrome.customClientsFor ? appendMimeTypeToClientFor(config.navidrome.customClientsFor.split(",")) : DEFAULT;
+
+const app = server(
+  sonosSystem,
+  bonob,
+  config.webAddress,
+  new Navidrome(
+    config.navidrome.url,
+    encryption(config.secret),
+    streamUserAgent
+  ),
+  new InMemoryLinkCodes(),
+  new InMemoryAccessTokens(sha256(config.secret))
+);
+
+if (config.sonos.autoRegister) {
   sonosSystem.register(bonob).then((success) => {
     if (success) {
       logger.info(
@@ -39,25 +45,8 @@ if (process.env["BONOB_SONOS_AUTO_REGISTER"] == "true") {
   });
 }
 
-const customClientsFor = process.env["BONOB_NAVIDROME_CUSTOM_CLIENTS"] || "none";
-const streamUserAgent =
-customClientsFor == "none" ? DEFAULT : appendMimeTypeToClientFor(customClientsFor.split(","));
-
-const app = server(
-  sonosSystem,
-  bonob,
-  WEB_ADDRESS,
-  new Navidrome(
-    process.env["BONOB_NAVIDROME_URL"] || `http://${hostname()}:4533`,
-    encryption(secret),
-    streamUserAgent
-  ),
-  new InMemoryLinkCodes(),
-  new InMemoryAccessTokens(sha256(secret))
-);
-
-app.listen(PORT, () => {
-  logger.info(`Listening on ${PORT} available @ ${WEB_ADDRESS}`);
+app.listen(config.port, () => {
+  logger.info(`Listening on ${config.port} available @ ${config.webAddress}`);
 });
 
 export default app;
diff --git a/src/config.ts b/src/config.ts
new file mode 100644
index 0000000..bbe57ea
--- /dev/null
+++ b/src/config.ts
@@ -0,0 +1,30 @@
+import { hostname } from "os";
+import logger from "./logger";
+
+const port = +(process.env["BONOB_PORT"] || 4534);
+const webAddress =
+    process.env["BONOB_WEB_ADDRESS"] || `http://${hostname()}:${port}`;
+
+if (webAddress.match("localhost")) {
+    logger.error("BONOB_WEB_ADDRESS containing localhost is almost certainly incorrect, sonos devices will not be able to communicate with bonob using localhost, please specify either public IP or DNS entry");
+    process.exit(1);
+}
+
+export default {
+    port,
+    webAddress,
+    secret: process.env["BONOB_SECRET"] || "bonob",
+    sonos: {
+        serviceName: process.env["BONOB_SONOS_SERVICE_NAME"] || "bonob",
+        deviceDiscovery: (process.env["BONOB_SONOS_DEVICE_DISCOVERY"] || "true") == "true",
+        seedHost: process.env["BONOB_SONOS_SEED_HOST"],
+        autoRegister: process.env["BONOB_SONOS_AUTO_REGISTER"] == "true",
+        sid: Number(process.env["BONOS_SONOS_SERVICE_ID"] || "246")
+    },
+    navidrome: {
+        url: process.env["BONOB_NAVIDROME_URL"] || `http://${hostname()}:4533`,
+        customClientsFor: process.env["BONOB_NAVIDROME_CUSTOM_CLIENTS"] || undefined,
+    }
+}
+
+
diff --git a/src/register.ts b/src/register.ts
new file mode 100644
index 0000000..e77e995
--- /dev/null
+++ b/src/register.ts
@@ -0,0 +1,20 @@
+import config from "./config";
+import logger from "./logger";
+import sonos, { bonobService } from "./sonos";
+
+const bonob = bonobService(
+    config.sonos.serviceName,
+    config.sonos.sid,
+    config.webAddress,
+    "AppLink"
+);
+
+const sonosSystem = sonos(config.sonos.deviceDiscovery, config.sonos.seedHost);
+
+sonosSystem.register(bonob).then((success) => {
+    if (success) {
+        logger.info(
+            `Successfully registered ${bonob.name}(SID:${bonob.sid}) with sonos`
+        );
+    }
+});
\ No newline at end of file